メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.735548933179 35.3341342127003, 136.733776723517 35.3344494672341, 136.732426723482 35.3347049224029, 136.73214170212 35.3336336982057, 136.732527267083 35.333482890392, 136.73346287937 35.3332760218109, 136.735233712195 35.332971826782, 136.735548933179 35.3341342127003)) ^^http://www.opengis.net/ont/geosparql#wktLiteral