メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.962858920001 43.55063062006, 144.962818963538 43.5506020364959, 144.962415962211 43.5503300141337, 144.961998070594 43.5500535986179, 144.96273818168 43.5494490446754, 144.963142859124 43.5497240476843, 144.963510845301 43.5499784395424, 144.963601805926 43.5500319000678, 144.962858920001 43.55063062006)) ^^http://www.opengis.net/ont/geosparql#wktLiteral