メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.34704664604 44.4843932753899, 142.347042358449 44.484402032458, 142.346971306124 44.4843971357009, 142.345984377636 44.484158695581, 142.345948772563 44.4841501123404, 142.345964274453 44.484124541134, 142.346379754458 44.4832195494778, 142.347464873848 44.4835131304941, 142.34704664604 44.4843932753899)) ^^http://www.opengis.net/ont/geosparql#wktLiteral