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:j.1="http://purl.org/dc/terms/"
    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/SEC-FT2">
    <j.0:definedUnitOfSystem rdf:resource="http://qudt.org/vocab/sou/USCS"/>
    <j.0:ucumCode rdf:datatype="http://qudt.org/schema/qudt/UCUMcs">s.[sft_i]</j.0:ucumCode>
    <j.0:conversionMultiplier rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">0.09290304</j.0:conversionMultiplier>
    <j.0:expression rdf:datatype="http://qudt.org/schema/qudt/LatexString">$s-ft^2$</j.0:expression>
    <rdfs:label xml:lang="en">Second Square Foot</rdfs:label>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/IMPERIAL"/>
    <j.0:ucumCode rdf:datatype="http://qudt.org/schema/qudt/UCUMcs">s.[ft_i]2</j.0:ucumCode>
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/DerivedUnit"/>
    <j.0:conversionMultiplierSN rdf:datatype="http://www.w3.org/2001/XMLSchema#double">9.290304E-2</j.0:conversionMultiplierSN>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/AreaTime"/>
    <rdfs:isDefinedBy rdf:resource="http://qudt.org/2.1/vocab/unit"/>
    <j.0:hasDimensionVector rdf:resource="http://qudt.org/vocab/dimensionvector/A0E0L2I0M0H0T1D0"/>
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/Unit"/>
    <j.0:applicableSystem rdf:resource="http://qudt.org/vocab/sou/USCS"/>
    <j.1:description rdf:datatype="http://qudt.org/schema/qudt/LatexString">"Second Square Foot" is an Imperial unit for  'Area Time' expressed as $s-ft^{2}$.</j.1:description>
    <j.0:symbol>s·ft²</j.0:symbol>
  </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/SEC-FT2>
  rdf:type <http://qudt.org/schema/qudt/DerivedUnit> ;
  rdf:type <http://qudt.org/schema/qudt/Unit> ;
  <http://purl.org/dc/terms/description> "\"Second Square Foot\" is an Imperial unit for  'Area Time' expressed as $s-ft^{2}$."^^<http://qudt.org/schema/qudt/LatexString> ;
  <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> 0.09290304 ;
  <http://qudt.org/schema/qudt/conversionMultiplierSN> 9.290304E-2 ;
  <http://qudt.org/schema/qudt/definedUnitOfSystem> <http://qudt.org/vocab/sou/USCS> ;
  <http://qudt.org/schema/qudt/expression> "$s-ft^2$"^^<http://qudt.org/schema/qudt/LatexString> ;
  <http://qudt.org/schema/qudt/hasDimensionVector> <http://qudt.org/vocab/dimensionvector/A0E0L2I0M0H0T1D0> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/AreaTime> ;
  <http://qudt.org/schema/qudt/symbol> "s·ft²" ;
  <http://qudt.org/schema/qudt/ucumCode> "s.[ft_i]2"^^<http://qudt.org/schema/qudt/UCUMcs> ;
  <http://qudt.org/schema/qudt/ucumCode> "s.[sft_i]"^^<http://qudt.org/schema/qudt/UCUMcs> ;
  rdfs:isDefinedBy <http://qudt.org/2.1/vocab/unit> ;
  rdfs:label "Second Square Foot"@en ;
.

{"resource":"Second Square Foot" 
 ,"qname":"unit:SEC-FT2" 
 ,"uri":"http:\/\/qudt.org\/vocab\/unit\/SEC-FT2" 
 ,"properties":["applicable system":"sou:IMPERIAL" 
    ,"applicable system":"sou:USCS" 
    ,"conversion multiplier":"0.09290304" 
    ,"conversion multiplier scientific":"9.290304E-2" 
    ,"defined unit of system":"sou:USCS" 
    ,"description":"\"Second Square Foot\" is an Imperial unit for  'Area Time' expressed as $s-ft^{2}$." 
    ,"expression":"$s-ft^2$" 
    ,"has dimension vector":"dimension:A0E0L2I0M0H0T1D0" 
    ,"has quantity kind":"quantitykind:AreaTime" 
    ,"isDefinedBy":"<http:\/\/qudt.org\/2.1\/vocab\/unit>" 
    ,"label":"Second Square Foot" 
    ,"symbol":"s·ft²" 
    ,"type":"qudt:DerivedUnit" 
    ,"type":"qudt:Unit" 
    ,"ucum code":"s.[ft_i]2" 
    ,"ucum code":"s.[sft_i]" 
    ]}

{
  "@id" : "http://qudt.org/vocab/unit/SEC-FT2",
  "@type" : [ "http://qudt.org/schema/qudt/DerivedUnit", "http://qudt.org/schema/qudt/Unit" ],
  "description" : "\"Second Square Foot\" is an Imperial unit for  'Area Time' expressed as $s-ft^{2}$.",
  "applicableSystem" : [ "http://qudt.org/vocab/sou/IMPERIAL", "http://qudt.org/vocab/sou/USCS" ],
  "conversionMultiplier" : "0.09290304",
  "conversionMultiplier:SN" : 0.09290304,
  "definedUnitOfSystem" : "http://qudt.org/vocab/sou/USCS",
  "expression" : "$s-ft^2$",
  "hasDimensionVector" : "http://qudt.org/vocab/dimensionvector/A0E0L2I0M0H0T1D0",
  "hasQuantityKind" : "http://qudt.org/vocab/quantitykind/AreaTime",
  "symbol" : "s·ft²",
  "ucumCode" : [ "s.[sft_i]", "s.[ft_i]2" ],
  "isDefinedBy" : "http://qudt.org/2.1/vocab/unit",
  "label" : {
    "@language" : "en",
    "@value" : "Second Square Foot"
  },
  "@context" : {
    "definedUnitOfSystem" : {
      "@id" : "http://qudt.org/schema/qudt/definedUnitOfSystem",
      "@type" : "@id"
    },
    "ucumCode" : {
      "@id" : "http://qudt.org/schema/qudt/ucumCode",
      "@type" : "http://qudt.org/schema/qudt/UCUMcs"
    },
    "conversionMultiplier" : {
      "@id" : "http://qudt.org/schema/qudt/conversionMultiplier",
      "@type" : "http://www.w3.org/2001/XMLSchema#decimal"
    },
    "expression" : {
      "@id" : "http://qudt.org/schema/qudt/expression",
      "@type" : "http://qudt.org/schema/qudt/LatexString"
    },
    "label" : {
      "@id" : "http://www.w3.org/2000/01/rdf-schema#label"
    },
    "applicableSystem" : {
      "@id" : "http://qudt.org/schema/qudt/applicableSystem",
      "@type" : "@id"
    },
    "conversionMultiplierSN" : {
      "@id" : "http://qudt.org/schema/qudt/conversionMultiplierSN",
      "@type" : "http://www.w3.org/2001/XMLSchema#double"
    },
    "hasQuantityKind" : {
      "@id" : "http://qudt.org/schema/qudt/hasQuantityKind",
      "@type" : "@id"
    },
    "isDefinedBy" : {
      "@id" : "http://www.w3.org/2000/01/rdf-schema#isDefinedBy",
      "@type" : "@id"
    },
    "hasDimensionVector" : {
      "@id" : "http://qudt.org/schema/qudt/hasDimensionVector",
      "@type" : "@id"
    },
    "description" : {
      "@id" : "http://purl.org/dc/terms/description",
      "@type" : "http://qudt.org/schema/qudt/LatexString"
    },
    "symbol" : {
      "@id" : "http://qudt.org/schema/qudt/symbol"
    },
    "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#"
  }
}