メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.626886094843 36.4443424623873, 136.623479698137 36.442301036023, 136.624119728908 36.4420480657139, 136.624967762364 36.4417640681783, 136.625719173995 36.4415015958579, 136.626641946062 36.4411379743392, 136.626792238639 36.4410849645635, 136.628964352553 36.4423133366252, 136.627759971272 36.4435235302128, 136.626886094843 36.4443424623873)) ^^http://www.opengis.net/ont/geosparql#wktLiteral