メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.729313153747 35.1743288574615, 136.729716147587 35.1743358065824, 136.729729349103 35.1749866120337, 136.729578276223 35.1750086010127, 136.729575560072 35.1753721739315, 136.729430504883 35.1753674944625, 136.729349831471 35.1753605831417, 136.729184469283 35.1753599853669, 136.728998848496 35.1753626239761, 136.728962567181 35.1742974500218, 136.729313153747 35.1743288574615)) ^^http://www.opengis.net/ont/geosparql#wktLiteral