メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.930158705095 42.8892390371482, 143.929797920378 42.8903166308713, 143.929855972963 42.890326960808, 143.929600885627 42.8912325256845, 143.92801124079 42.891579923706, 143.928145594023 42.8900238400236, 143.928265510023 42.8888382455946, 143.928410238597 42.8887084062237, 143.928508536151 42.8886369868481, 143.928599564936 42.8884597607755, 143.928928998182 42.8885877765673, 143.929307978592 42.8886665378534, 143.930571816364 42.8889262676018, 143.930530319401 42.8892365333997, 143.93045700652 42.8892700311008, 143.930258572964 42.8892325067839, 143.930249597091 42.8892611921371, 143.930158705095 42.8892390371482)) ^^http://www.opengis.net/ont/geosparql#wktLiteral