メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((133.999268541119 35.0611725361883, 133.997905481054 35.0612553092162, 133.997879171351 35.060913591629, 133.997858482675 35.0605536483258, 133.999205681167 35.060472028226, 133.999268541119 35.0611725361883)) ^^http://www.opengis.net/ont/geosparql#wktLiteral