メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.392796156257 34.832706520911, 137.39305031258 34.8343593405435, 137.392762296128 34.8351212993924, 137.392147949938 34.8366346520473, 137.389973092313 34.8359421575061, 137.390181967895 34.8353687505164, 137.390083096819 34.8346486356525, 137.389963060947 34.8337745263639, 137.389840902321 34.8329923327082, 137.389489283836 34.8330219213765, 137.389427513196 34.8325673321303, 137.391216364158 34.8323958023664, 137.392747099407 34.8322448673701, 137.392756017723 34.8324008550388, 137.392796156257 34.832706520911)) ^^http://www.opengis.net/ont/geosparql#wktLiteral