diff --git a/fhir-date-offene-periods.svg b/fhir-date-offene-periods.svg
index 8ff395c..4899ab2 100644
--- a/fhir-date-offene-periods.svg
+++ b/fhir-date-offene-periods.svg
@@ -1,87 +1,93 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="1100" height="830" viewBox="0 0 1100 830" font-family="Segoe UI, Arial, sans-serif">
-<rect width="1100" height="830" fill="#ffffff"/>
-<text x="550.0" y="30" font-size="22" font-weight="700" fill="#1a1a2e" text-anchor="middle">FHIR date: Matching gegen offene (unvollstaendige) Period/Range</text>
-<text x="550.0" y="52" font-size="14" fill="#555" text-anchor="middle">Fehlender Start = -unendlich  |  Fehlendes Ende = +unendlich  |  Pfeilspitze = offenes Ende</text>
-<text x="550.0" y="72" font-size="12.5" fill="#777" text-anchor="middle">Suchwert: date=&lt;praefix&gt;2023-06-15</text>
-<text x="30" y="110" font-size="20" font-weight="700" fill="#111">gt</text>
-<text x="30" y="130" font-size="12.5" fill="#555">Fehlendes Ende = +unendlich -&gt; ueberlappt fast immer den oberen Bereich.</text>
-<rect x="680.0" y="138" width="360.0" height="16" fill="#1565c0" opacity="0.12"/>
-<line x1="240" y1="146" x2="1040" y2="146" stroke="#333" stroke-width="1.5"/>
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-<line x1="680.0" y1="126" x2="680.0" y2="166" stroke="#c62828" stroke-width="2.5" />
-<text x="680.0" y="120" font-size="11.5" fill="#c62828" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="640.0" y="167" width="380.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="1020,176 1006,167 1006,185" fill="#546e7a"/>
-<text x="830.0" y="208" font-size="11" fill="#444" text-anchor="middle">Period D: nur Start (laeuft noch)</text>
-<path d="M 821.0 154 l 6 6 l 12 -13" stroke="#2e7d32" stroke-width="3.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="260" y="167" width="410.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,176 274,167 274,185" fill="#546e7a"/>
-<text x="465.0" y="208" font-size="11" fill="#444" text-anchor="middle">Period E: nur Ende (Start unbekannt)</text>
-<line x1="456.0" y1="145" x2="474.0" y2="163" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/><line x1="456.0" y1="163" x2="474.0" y2="145" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/>
-<rect x="260" y="167" width="760" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,176 274,167 274,185" fill="#546e7a"/>
-<polygon points="1020,176 1006,167 1006,185" fill="#546e7a"/>
-<text x="640.0" y="208" font-size="11" fill="#444" text-anchor="middle">Period F: weder Start noch Ende bekannt</text>
-<path d="M 631.0 154 l 6 6 l 12 -13" stroke="#2e7d32" stroke-width="3.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<text x="30" y="280" font-size="20" font-weight="700" fill="#111">sa</text>
-<text x="30" y="300" font-size="12.5" fill="#555">Fehlender Start = -unendlich -&gt; kann NIE vollstaendig 'danach' liegen.</text>
-<rect x="680.0" y="308" width="360.0" height="16" fill="#1565c0" opacity="0.12"/>
-<line x1="240" y1="316" x2="1040" y2="316" stroke="#333" stroke-width="1.5"/>
-<polygon points="1040,316 1033,312 1033,320" fill="#333"/>
-<line x1="680.0" y1="296" x2="680.0" y2="336" stroke="#c62828" stroke-width="2.5" stroke-dasharray="4,4"/>
-<text x="680.0" y="290" font-size="11.5" fill="#c62828" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="640.0" y="337" width="380.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="1020,346 1006,337 1006,355" fill="#546e7a"/>
-<text x="830.0" y="378" font-size="11" fill="#444" text-anchor="middle">Period D: nur Start (laeuft noch)</text>
-<line x1="821.0" y1="315" x2="839.0" y2="333" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/><line x1="821.0" y1="333" x2="839.0" y2="315" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/>
-<rect x="260" y="337" width="410.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,346 274,337 274,355" fill="#546e7a"/>
-<text x="465.0" y="378" font-size="11" fill="#444" text-anchor="middle">Period E: nur Ende (Start unbekannt)</text>
-<line x1="456.0" y1="315" x2="474.0" y2="333" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/><line x1="456.0" y1="333" x2="474.0" y2="315" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/>
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-<polygon points="260,346 274,337 274,355" fill="#546e7a"/>
-<polygon points="1020,346 1006,337 1006,355" fill="#546e7a"/>
-<text x="640.0" y="378" font-size="11" fill="#444" text-anchor="middle">Period F: weder Start noch Ende bekannt</text>
-<line x1="631.0" y1="315" x2="649.0" y2="333" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/><line x1="631.0" y1="333" x2="649.0" y2="315" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/>
-<line x1="30" y1="415" x2="1040" y2="415" stroke="#ddd" stroke-width="1"/>
-<text x="30" y="450" font-size="20" font-weight="700" fill="#111">lt</text>
-<text x="30" y="470" font-size="12.5" fill="#555">Fehlender Start = -unendlich -&gt; ueberlappt fast immer den unteren Bereich.</text>
-<rect x="240" y="478" width="440.0" height="16" fill="#1565c0" opacity="0.12"/>
-<line x1="240" y1="486" x2="1040" y2="486" stroke="#333" stroke-width="1.5"/>
-<polygon points="1040,486 1033,482 1033,490" fill="#333"/>
-<line x1="680.0" y1="466" x2="680.0" y2="506" stroke="#c62828" stroke-width="2.5" />
-<text x="680.0" y="460" font-size="11.5" fill="#c62828" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="640.0" y="507" width="380.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="1020,516 1006,507 1006,525" fill="#546e7a"/>
-<text x="830.0" y="548" font-size="11" fill="#444" text-anchor="middle">Period D: nur Start (laeuft noch)</text>
-<path d="M 821.0 494 l 6 6 l 12 -13" stroke="#2e7d32" stroke-width="3.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="260" y="507" width="410.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,516 274,507 274,525" fill="#546e7a"/>
-<text x="465.0" y="548" font-size="11" fill="#444" text-anchor="middle">Period E: nur Ende (Start unbekannt)</text>
-<path d="M 456.0 494 l 6 6 l 12 -13" stroke="#2e7d32" stroke-width="3.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="260" y="507" width="760" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,516 274,507 274,525" fill="#546e7a"/>
-<polygon points="1020,516 1006,507 1006,525" fill="#546e7a"/>
-<text x="640.0" y="548" font-size="11" fill="#444" text-anchor="middle">Period F: weder Start noch Ende bekannt</text>
-<path d="M 631.0 494 l 6 6 l 12 -13" stroke="#2e7d32" stroke-width="3.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<text x="30" y="620" font-size="20" font-weight="700" fill="#111">eb</text>
-<text x="30" y="640" font-size="12.5" fill="#555">Fehlendes Ende = +unendlich -&gt; kann NIE vollstaendig 'davor' liegen.</text>
-<rect x="240" y="648" width="440.0" height="16" fill="#1565c0" opacity="0.12"/>
-<line x1="240" y1="656" x2="1040" y2="656" stroke="#333" stroke-width="1.5"/>
-<polygon points="1040,656 1033,652 1033,660" fill="#333"/>
-<line x1="680.0" y1="636" x2="680.0" y2="676" stroke="#c62828" stroke-width="2.5" stroke-dasharray="4,4"/>
-<text x="680.0" y="630" font-size="11.5" fill="#c62828" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
-<rect x="640.0" y="677" width="380.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="1020,686 1006,677 1006,695" fill="#546e7a"/>
-<text x="830.0" y="718" font-size="11" fill="#444" text-anchor="middle">Period D: nur Start (laeuft noch)</text>
-<line x1="821.0" y1="655" x2="839.0" y2="673" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/><line x1="821.0" y1="673" x2="839.0" y2="655" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/>
-<rect x="260" y="677" width="410.0" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,686 274,677 274,695" fill="#546e7a"/>
-<text x="465.0" y="718" font-size="11" fill="#444" text-anchor="middle">Period E: nur Ende (Start unbekannt)</text>
-<path d="M 456.0 664 l 6 6 l 12 -13" stroke="#2e7d32" stroke-width="3.5" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
-<rect x="260" y="677" width="760" height="18" rx="4" fill="#546e7a" opacity="0.75"/>
-<polygon points="260,686 274,677 274,695" fill="#546e7a"/>
-<polygon points="1020,686 1006,677 1006,695" fill="#546e7a"/>
-<text x="640.0" y="718" font-size="11" fill="#444" text-anchor="middle">Period F: weder Start noch Ende bekannt</text>
-<line x1="631.0" y1="655" x2="649.0" y2="673" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/><line x1="631.0" y1="673" x2="649.0" y2="655" stroke="#c62828" stroke-width="3.5" stroke-linecap="round"/>
-</svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" width="1160" height="788" viewBox="0 0 1160 788" font-family="Segoe UI, Arial, sans-serif">
+<rect width="1160" height="788" fill="#ffffff"/>
+<text x="580.0" y="30" font-size="22" font-weight="700" fill="#1a1a2e" text-anchor="middle">FHIR date: Matching gegen offene (unvollstaendige) Period/Range</text>
+<text x="580.0" y="52" font-size="14" fill="#555" text-anchor="middle">Fehlender Start = -unendlich  |  Fehlendes Ende = +unendlich  |  Pfeilspitze = offenes Ende</text>
+<text x="580.0" y="72" font-size="12.5" fill="#777" text-anchor="middle">Suchwert: date=&lt;praefix&gt;2023-06-15  |  Gruen = Treffer, Rot = kein Treffer</text>
+<text x="30" y="108" font-size="20" font-weight="700" fill="#111">gt</text>
+<text x="180" y="108" font-size="12.5" fill="#555">Fehlendes Ende = +unendlich -&gt; ueberlappt fast immer den oberen Bereich.</text>
+<rect x="700.0" y="124" width="360.0" height="124" fill="#1565c0" opacity="0.07"/>
+<line x1="260" y1="134" x2="1060" y2="134" stroke="#333" stroke-width="1.5"/>
+<polygon points="1060,134 1053,130 1053,138" fill="#333"/>
+<text x="260" y="150" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
+<line x1="700.0" y1="134" x2="700.0" y2="240" stroke="#333" stroke-width="2" />
+<text x="700.0" y="124" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
+<rect x="660.0" y="152" width="380.0" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="1040,160 1027,152 1027,168" fill="#2e7d32"/>
+<text x="246" y="164" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
+<path d="M 1074 160 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+<rect x="280" y="186" width="410.0" height="16" rx="4" fill="#c62828"/>
+<polygon points="280,194 293,186 293,202" fill="#c62828"/>
+<text x="246" y="198" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
+<line x1="1075" y1="187" x2="1089" y2="201" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="201" x2="1089" y2="187" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
+<rect x="280" y="220" width="760" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="280,228 293,220 293,236" fill="#2e7d32"/>
+<polygon points="1040,228 1027,220 1027,236" fill="#2e7d32"/>
+<text x="246" y="232" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
+<path d="M 1074 228 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+<line x1="30" y1="248" x2="1130" y2="248" stroke="#eee" stroke-width="1"/>
+<text x="30" y="270" font-size="20" font-weight="700" fill="#111">sa</text>
+<text x="180" y="270" font-size="12.5" fill="#555">Fehlender Start = -unendlich -&gt; kann NIE vollstaendig 'danach' liegen.</text>
+<rect x="700.0" y="286" width="360.0" height="124" fill="#1565c0" opacity="0.07"/>
+<line x1="260" y1="296" x2="1060" y2="296" stroke="#333" stroke-width="1.5"/>
+<polygon points="1060,296 1053,292 1053,300" fill="#333"/>
+<text x="260" y="312" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
+<line x1="700.0" y1="296" x2="700.0" y2="402" stroke="#333" stroke-width="2" stroke-dasharray="4,4"/>
+<text x="700.0" y="286" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
+<rect x="660.0" y="314" width="380.0" height="16" rx="4" fill="#c62828"/>
+<polygon points="1040,322 1027,314 1027,330" fill="#c62828"/>
+<text x="246" y="326" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
+<line x1="1075" y1="315" x2="1089" y2="329" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="329" x2="1089" y2="315" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
+<rect x="280" y="348" width="410.0" height="16" rx="4" fill="#c62828"/>
+<polygon points="280,356 293,348 293,364" fill="#c62828"/>
+<text x="246" y="360" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
+<line x1="1075" y1="349" x2="1089" y2="363" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="363" x2="1089" y2="349" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
+<rect x="280" y="382" width="760" height="16" rx="4" fill="#c62828"/>
+<polygon points="280,390 293,382 293,398" fill="#c62828"/>
+<polygon points="1040,390 1027,382 1027,398" fill="#c62828"/>
+<text x="246" y="394" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
+<line x1="1075" y1="383" x2="1089" y2="397" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="397" x2="1089" y2="383" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
+<line x1="30" y1="410" x2="1130" y2="410" stroke="#eee" stroke-width="1"/>
+<text x="30" y="432" font-size="20" font-weight="700" fill="#111">lt</text>
+<text x="180" y="432" font-size="12.5" fill="#555">Fehlender Start = -unendlich -&gt; ueberlappt fast immer den unteren Bereich.</text>
+<rect x="260" y="448" width="440.0" height="124" fill="#1565c0" opacity="0.07"/>
+<line x1="260" y1="458" x2="1060" y2="458" stroke="#333" stroke-width="1.5"/>
+<polygon points="1060,458 1053,454 1053,462" fill="#333"/>
+<text x="260" y="474" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
+<line x1="700.0" y1="458" x2="700.0" y2="564" stroke="#333" stroke-width="2" />
+<text x="700.0" y="448" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
+<rect x="660.0" y="476" width="380.0" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="1040,484 1027,476 1027,492" fill="#2e7d32"/>
+<text x="246" y="488" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
+<path d="M 1074 484 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+<rect x="280" y="510" width="410.0" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="280,518 293,510 293,526" fill="#2e7d32"/>
+<text x="246" y="522" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
+<path d="M 1074 518 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+<rect x="280" y="544" width="760" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="280,552 293,544 293,560" fill="#2e7d32"/>
+<polygon points="1040,552 1027,544 1027,560" fill="#2e7d32"/>
+<text x="246" y="556" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
+<path d="M 1074 552 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+<line x1="30" y1="572" x2="1130" y2="572" stroke="#eee" stroke-width="1"/>
+<text x="30" y="594" font-size="20" font-weight="700" fill="#111">eb</text>
+<text x="180" y="594" font-size="12.5" fill="#555">Fehlendes Ende = +unendlich -&gt; kann NIE vollstaendig 'davor' liegen.</text>
+<rect x="260" y="610" width="440.0" height="124" fill="#1565c0" opacity="0.07"/>
+<line x1="260" y1="620" x2="1060" y2="620" stroke="#333" stroke-width="1.5"/>
+<polygon points="1060,620 1053,616 1053,624" fill="#333"/>
+<text x="260" y="636" font-size="10" fill="#999" text-anchor="start">Zeitachse</text>
+<line x1="700.0" y1="620" x2="700.0" y2="726" stroke="#333" stroke-width="2" stroke-dasharray="4,4"/>
+<text x="700.0" y="610" font-size="11.5" fill="#333" text-anchor="middle" font-weight="600">Suchgrenze (2023-06-15)</text>
+<rect x="660.0" y="638" width="380.0" height="16" rx="4" fill="#c62828"/>
+<polygon points="1040,646 1027,638 1027,654" fill="#c62828"/>
+<text x="246" y="650" font-size="11.5" fill="#333" text-anchor="end">Period D: nur Start (laeuft noch)</text>
+<line x1="1075" y1="639" x2="1089" y2="653" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="653" x2="1089" y2="639" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
+<rect x="280" y="672" width="410.0" height="16" rx="4" fill="#2e7d32"/>
+<polygon points="280,680 293,672 293,688" fill="#2e7d32"/>
+<text x="246" y="684" font-size="11.5" fill="#333" text-anchor="end">Period E: nur Ende (Start unbekannt)</text>
+<path d="M 1074 680 l 5 5 l 10 -11" stroke="#ffffff" stroke-width="3" fill="none" stroke-linecap="round" stroke-linejoin="round"/>
+<rect x="280" y="706" width="760" height="16" rx="4" fill="#c62828"/>
+<polygon points="280,714 293,706 293,722" fill="#c62828"/>
+<polygon points="1040,714 1027,706 1027,722" fill="#c62828"/>
+<text x="246" y="718" font-size="11.5" fill="#333" text-anchor="end">Period F: weder Start noch Ende bekannt</text>
+<line x1="1075" y1="707" x2="1089" y2="721" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/><line x1="1075" y1="721" x2="1089" y2="707" stroke="#ffffff" stroke-width="3" stroke-linecap="round"/>
+<rect x="30" y="756" width="18" height="14" rx="3" fill="#2e7d32"/><text x="54" y="768" font-size="12.5" fill="#333">Treffer</text><rect x="130" y="756" width="18" height="14" rx="3" fill="#c62828"/><text x="154" y="768" font-size="12.5" fill="#333">kein Treffer</text></svg>
\ No newline at end of file