メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.554891109001 35.307423187341, 136.553913559264 35.3080707904935, 136.553606522068 35.3082540983813, 136.553594020682 35.3082428379072, 136.553062403057 35.3075733905781, 136.55318106959 35.3075296945196, 136.553421196179 35.3074360495226, 136.554544880699 35.3069410879574, 136.554891109001 35.307423187341)) ^^http://www.opengis.net/ont/geosparql#wktLiteral