メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.733715664966 35.407399448133, 136.735039948285 35.4077379804074, 136.735020396071 35.4078319223138, 136.734921769391 35.4082624743423, 136.734719836584 35.4092827816597, 136.733345349479 35.4090962403823, 136.732146793782 35.4089286950987, 136.732278292272 35.4076309666355, 136.731956676545 35.4075621346166, 136.731949517361 35.4069241687946, 136.732358457056 35.4070364127862, 136.733715664966 35.407399448133)) ^^http://www.opengis.net/ont/geosparql#wktLiteral