メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.864748292912 35.1337183374286, 136.864731005991 35.1340530352985, 136.864722226146 35.1344291661135, 136.863679797055 35.1344030379624, 136.863672060549 35.1344028779645, 136.863071405382 35.1343878506299, 136.863065992793 35.1343332556011, 136.863134744608 35.1338418443594, 136.863223127437 35.1331361708837, 136.863736528462 35.1331448529089, 136.864785280229 35.1331606452455, 136.864748292912 35.1337183374286)) ^^http://www.opengis.net/ont/geosparql#wktLiteral