メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.85173118881 43.8061268473762, 143.851681334285 43.8065498675382, 143.851633984804 43.8069793934759, 143.851592607159 43.8074035448753, 143.851544142642 43.8077843185355, 143.851425395681 43.8077772664712, 143.85019236251 43.8077025188255, 143.849849467209 43.807679354694, 143.84891873667 43.8076164792387, 143.848960474544 43.8072524489506, 143.849055856282 43.8064173843478, 143.849108060263 43.8059615988124, 143.849529582291 43.8059843686539, 143.850027244855 43.8060112726627, 143.85173118881 43.8061268473762)) ^^http://www.opengis.net/ont/geosparql#wktLiteral