メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.889631285183 35.1148597495918, 136.889631534341 35.1150567928198, 136.889631332508 35.1151410173293, 136.889628152848 35.1155577711344, 136.888317169013 35.1155562923481, 136.887067465564 35.1155488853979, 136.886470405032 35.1155453824999, 136.886473693806 35.1155610240773, 136.88579939417 35.1155553664647, 136.885781742889 35.1153004678414, 136.885679564199 35.1145310816216, 136.886258806088 35.1145360948399, 136.886835526691 35.1145329300301, 136.888308269123 35.1145338094451, 136.889631613274 35.1145436937145, 136.889631285183 35.1148597495918)) ^^http://www.opengis.net/ont/geosparql#wktLiteral