メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.680740648942 36.6184557302708, 136.681065738214 36.6192431211859, 136.681345262215 36.6199201361897, 136.681488180277 36.620266353734, 136.681617462683 36.6205794927615, 136.682136481234 36.6217617224013, 136.680415380569 36.622100823126, 136.680162516791 36.6212903769062, 136.679812558973 36.6203582960703, 136.679250702722 36.6188617984622, 136.679740790065 36.6187282022536, 136.678667381657 36.616399956007, 136.678967041069 36.616310286736, 136.679752726796 36.6160843977521, 136.680740648942 36.6184557302708)) ^^http://www.opengis.net/ont/geosparql#wktLiteral