<?xml version="1.0" encoding="utf-8"?>
		<vdex xmlns="http://www.imsglobal.org/xsd/imsvdex_v1p0"  orderSignificant="false" language="en">
    <vocabIdentifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en</vocabIdentifier><term><termIdentifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</termIdentifier><caption>optical properties</caption></term>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31296909">attributes and properties by specific type</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">BT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301334">dichroism</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301333">chromaticity</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301326">birefringence</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301324">shine</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301322">gloss</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301319">matte</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301316">transparency</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301314">translucency</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301312">opacity</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301310">iridescence</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301346">color temperature</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301308">luster</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301344">reflectivity</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301304">brightness</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301343">whiteness</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301341">allochromatic</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301340">acutance</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301338">illuminance</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301336">phosphorescent</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">NT</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298111">optical properties of materials</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">UF</relationshipType>  </relationship>  <relationship>      <sourceTerm>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298110</sourceTerm>      <targetTerm vocabIdentifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31298112">properties, optical</targetTerm>      <relationshipType source="http://www.imsglobal.org/vocabularies/iso2788_relations.xml">UF</relationshipType>  </relationship></vdex>