メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.241909462217 35.8725608619536, 140.239133499709 35.8725666661062, 140.23763583792 35.8723019404997, 140.23784907068 35.8711333943564, 140.238245517674 35.868953245545, 140.238670117183 35.8666148474864, 140.23904246953 35.8645872619205, 140.240011007087 35.8647440779738, 140.242113166752 35.8650275706248, 140.243216324339 35.8651600776891, 140.24310536175 35.8658099370106, 140.242740038291 35.8678213523154, 140.242284969122 35.870418184877, 140.241909462217 35.8725608619536)) ^^http://www.opengis.net/ont/geosparql#wktLiteral