メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.001276099671 34.989291461702, 137.001613782033 34.9894596757852, 137.001448987959 34.9898439045044, 137.0012193525 34.9903324860999, 137.000112776216 34.9899884207887, 136.999143712804 34.9896724953559, 136.9990919163 34.9896555919867, 136.999690557901 34.9885887669997, 136.999722822721 34.9885345830649, 137.000516235858 34.9871738526579, 137.000896835892 34.9873736774237, 137.001113303481 34.9874863724616, 137.001379174531 34.9876339240052, 137.001822987216 34.9878881300572, 137.001777544333 34.9880733583642, 137.001276099671 34.989291461702)) ^^http://www.opengis.net/ont/geosparql#wktLiteral