Enhancement pattern: dcterms:temporal

  conversion:enhance [
     ov:csvCol         3;
     ov:csvHeader     "Collection Date";
     conversion:label "Collection Date";
     conversion:comment "";
     conversion:range  xsd:date;
     conversion:eg "02/14/2008";
     conversion:date_pattern "MM/dd/yyyy";
     conversion:interpret [
        conversion:symbol "- N/A -";
        conversion:interpretation conversion:null;
     ];
     conversion:subproperty_of dcterms:temporal;
  ];