メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.187424149836 34.2261590565648, 135.187228656044 34.2269057651817, 135.186083730012 34.2266489722528, 135.185964102515 34.2272382694741, 135.185319951693 34.2271353816538, 135.185477395634 34.226829197584, 135.185769731826 34.2264367126736, 135.186258314989 34.225775910119, 135.186270325575 34.2256996403526, 135.186318587854 34.2255481056097, 135.187532194025 34.2257243531187, 135.187424149836 34.2261590565648)) ^^http://www.opengis.net/ont/geosparql#wktLiteral