メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.267655686934 35.2689051577231, 136.267359098237 35.2690298939198, 136.267108234346 35.269162134595, 136.267011464733 35.2692029103286, 136.267166719528 35.26863786183, 136.267641143867 35.2684549176044, 136.267654706824 35.2686050249792, 136.267655686934 35.2689051577231)) ^^http://www.opengis.net/ont/geosparql#wktLiteral