メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.768819867582 35.3986927214769, 136.76882544804 35.3991411156626, 136.768258566113 35.3990929925904, 136.76795036896 35.3991363489145, 136.767928011119 35.3990045864409, 136.767710513355 35.3990289440039, 136.767728364056 35.3991675928951, 136.767411215305 35.3992122562241, 136.767024133288 35.3992676753308, 136.766411788846 35.3993517885537, 136.766340695906 35.3989455009125, 136.766254814347 35.3985813473725, 136.768254592603 35.3983190437274, 136.768255195052 35.3983453774034, 136.768803818655 35.39834096631, 136.768819867582 35.3986927214769)) ^^http://www.opengis.net/ont/geosparql#wktLiteral