メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.820154859211 35.3917101388214, 136.820144591526 35.3917131382054, 136.819812159033 35.3917898643335, 136.820133388207 35.3909182014396, 136.821390635934 35.3909172700557, 136.821700935826 35.3908972357759, 136.822465214285 35.3905377895212, 136.823543207809 35.3897743013403, 136.823214327716 35.3907416566495, 136.820970415538 35.3914704254755, 136.820154859211 35.3917101388214)) ^^http://www.opengis.net/ont/geosparql#wktLiteral