メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.267889881497 35.2625368107643, 136.267694125898 35.2626516068124, 136.267393959004 35.2628309271343, 136.267006761496 35.2630605078752, 136.266826747392 35.2631581559112, 136.2666668262 35.2630053413791, 136.266870814687 35.2628875010672, 136.267628243898 35.2624659106038, 136.267761741238 35.2623947721366, 136.267889881497 35.2625368107643)) ^^http://www.opengis.net/ont/geosparql#wktLiteral