Work in progress

<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:j.0="http://qudt.org/schema/qudt/"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="http://qudt.org/vocab/unit/PSI">
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/USCS"/>
    <j.0:exactMatch rdf:resource="http://qudt.org/vocab/unit/LB_F-PER-IN2"/>
    <j.0:symbol>psi</j.0:symbol>
    <j.0:udunitsCode>psi</j.0:udunitsCode>
    <rdfs:label xml:lang="en">PSI</rdfs:label>
    <j.0:plainTextDescription>Pounds of force per square inch, the unit for pressure as a compounded unit pound-force according to the Anglo-American system of units divided by the power of the unit Inch according to the Anglo-American and Imperial system of units by exponent 2</j.0:plainTextDescription>
    <j.0:definedUnitOfSystem rdf:resource="http://qudt.org/vocab/sou/USCS"/>
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/Unit"/>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/ForcePerArea"/>
    <owl:sameAs rdf:resource="http://qudt.org/vocab/unit/LB_F-PER-IN2"/>
    <j.0:conversionMultiplier rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">6894.75789</j.0:conversionMultiplier>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/VaporPressure"/>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/IMPERIAL"/>
    <j.0:uneceCommonCode>PS</j.0:uneceCommonCode>
    <j.0:ucumCode rdf:datatype="http://qudt.org/schema/qudt/UCUMcs">[psi]</j.0:ucumCode>
    <j.0:hasDimensionVector rdf:resource="http://qudt.org/vocab/dimensionvector/A0E0L-1I0M1H0T-2D0"/>
    <rdfs:isDefinedBy rdf:resource="http://qudt.org/2.1/vocab/unit"/>
    <j.0:definedUnitOfSystem rdf:resource="http://qudt.org/vocab/sou/IMPERIAL"/>
  </rdf:Description>
</rdf:RDF>

@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://qudt.org/vocab/unit/PSI>
  rdf:type <http://qudt.org/schema/qudt/Unit> ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/IMPERIAL> ;
  <http://qudt.org/schema/qudt/applicableSystem> <http://qudt.org/vocab/sou/USCS> ;
  <http://qudt.org/schema/qudt/conversionMultiplier> 6894.75789 ;
  <http://qudt.org/schema/qudt/definedUnitOfSystem> <http://qudt.org/vocab/sou/IMPERIAL> ;
  <http://qudt.org/schema/qudt/definedUnitOfSystem> <http://qudt.org/vocab/sou/USCS> ;
  <http://qudt.org/schema/qudt/exactMatch> <http://qudt.org/vocab/unit/LB_F-PER-IN2> ;
  <http://qudt.org/schema/qudt/hasDimensionVector> <http://qudt.org/vocab/dimensionvector/A0E0L-1I0M1H0T-2D0> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/ForcePerArea> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/VaporPressure> ;
  <http://qudt.org/schema/qudt/plainTextDescription> "Pounds of force per square inch, the unit for pressure as a compounded unit pound-force according to the Anglo-American system of units divided by the power of the unit Inch according to the Anglo-American and Imperial system of units by exponent 2" ;
  <http://qudt.org/schema/qudt/symbol> "psi" ;
  <http://qudt.org/schema/qudt/ucumCode> "[psi]"^^<http://qudt.org/schema/qudt/UCUMcs> ;
  <http://qudt.org/schema/qudt/udunitsCode> "psi" ;
  <http://qudt.org/schema/qudt/uneceCommonCode> "PS" ;
  rdfs:isDefinedBy <http://qudt.org/2.1/vocab/unit> ;
  rdfs:label "PSI"@en ;
  owl:sameAs <http://qudt.org/vocab/unit/LB_F-PER-IN2> ;
.

{"resource":"PSI" 
 ,"qname":"unit:PSI" 
 ,"uri":"http:\/\/qudt.org\/vocab\/unit\/PSI" 
 ,"properties":["applicable system":"sou:IMPERIAL" 
    ,"applicable system":"sou:USCS" 
    ,"conversion multiplier":"6894.75789" 
    ,"defined unit of system":"sou:IMPERIAL" 
    ,"defined unit of system":"sou:USCS" 
    ,"description (plain text)":"Pounds of force per square inch, the unit for pressure as a compounded unit pound-force according to the Anglo-American system of units divided by the power of the unit Inch according to the Anglo-American and Imperial system of units by exponent 2" 
    ,"exact match":"unit:LB_F-PER-IN2" 
    ,"has dimension vector":"dimension:A0E0L-1I0M1H0T-2D0" 
    ,"has quantity kind":"quantitykind:ForcePerArea" 
    ,"has quantity kind":"quantitykind:VaporPressure" 
    ,"isDefinedBy":"<http:\/\/qudt.org\/2.1\/vocab\/unit>" 
    ,"label":"PSI" 
    ,"sameAs":"unit:LB_F-PER-IN2" 
    ,"symbol":"psi" 
    ,"type":"qudt:Unit" 
    ,"ucum code":"[psi]" 
    ,"udunits code":"psi" 
    ,"unece common code":"PS" 
    ]}

{
  "@id" : "http://qudt.org/vocab/unit/PSI",
  "@type" : "http://qudt.org/schema/qudt/Unit",
  "applicableSystem" : [ "http://qudt.org/vocab/sou/USCS", "http://qudt.org/vocab/sou/IMPERIAL" ],
  "conversionMultiplier" : "6894.75789",
  "definedUnitOfSystem" : [ "http://qudt.org/vocab/sou/USCS", "http://qudt.org/vocab/sou/IMPERIAL" ],
  "exactMatch" : "http://qudt.org/vocab/unit/LB_F-PER-IN2",
  "hasDimensionVector" : "http://qudt.org/vocab/dimensionvector/A0E0L-1I0M1H0T-2D0",
  "hasQuantityKind" : [ "http://qudt.org/vocab/quantitykind/ForcePerArea", "http://qudt.org/vocab/quantitykind/VaporPressure" ],
  "plainTextDescription" : "Pounds of force per square inch, the unit for pressure as a compounded unit pound-force according to the Anglo-American system of units divided by the power of the unit Inch according to the Anglo-American and Imperial system of units by exponent 2",
  "symbol" : "psi",
  "ucumCode" : "[psi]",
  "udunitsCode" : "psi",
  "uneceCommonCode" : "PS",
  "isDefinedBy" : "http://qudt.org/2.1/vocab/unit",
  "label" : {
    "@language" : "en",
    "@value" : "PSI"
  },
  "sameAs" : "http://qudt.org/vocab/unit/LB_F-PER-IN2",
  "@context" : {
    "applicableSystem" : {
      "@id" : "http://qudt.org/schema/qudt/applicableSystem",
      "@type" : "@id"
    },
    "exactMatch" : {
      "@id" : "http://qudt.org/schema/qudt/exactMatch",
      "@type" : "@id"
    },
    "symbol" : {
      "@id" : "http://qudt.org/schema/qudt/symbol"
    },
    "udunitsCode" : {
      "@id" : "http://qudt.org/schema/qudt/udunitsCode"
    },
    "label" : {
      "@id" : "http://www.w3.org/2000/01/rdf-schema#label"
    },
    "plainTextDescription" : {
      "@id" : "http://qudt.org/schema/qudt/plainTextDescription"
    },
    "definedUnitOfSystem" : {
      "@id" : "http://qudt.org/schema/qudt/definedUnitOfSystem",
      "@type" : "@id"
    },
    "hasQuantityKind" : {
      "@id" : "http://qudt.org/schema/qudt/hasQuantityKind",
      "@type" : "@id"
    },
    "sameAs" : {
      "@id" : "http://www.w3.org/2002/07/owl#sameAs",
      "@type" : "@id"
    },
    "conversionMultiplier" : {
      "@id" : "http://qudt.org/schema/qudt/conversionMultiplier",
      "@type" : "http://www.w3.org/2001/XMLSchema#decimal"
    },
    "uneceCommonCode" : {
      "@id" : "http://qudt.org/schema/qudt/uneceCommonCode"
    },
    "ucumCode" : {
      "@id" : "http://qudt.org/schema/qudt/ucumCode",
      "@type" : "http://qudt.org/schema/qudt/UCUMcs"
    },
    "hasDimensionVector" : {
      "@id" : "http://qudt.org/schema/qudt/hasDimensionVector",
      "@type" : "@id"
    },
    "isDefinedBy" : {
      "@id" : "http://www.w3.org/2000/01/rdf-schema#isDefinedBy",
      "@type" : "@id"
    },
    "rdf" : "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
    "owl" : "http://www.w3.org/2002/07/owl#",
    "xsd" : "http://www.w3.org/2001/XMLSchema#",
    "rdfs" : "http://www.w3.org/2000/01/rdf-schema#"
  }
}