メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.007359665942 34.8808033750011, 137.007581756246 34.8809712208276, 137.007110106705 34.8821306529556, 137.006948305409 34.882531257051, 137.006425627712 34.8819630375333, 137.005693576287 34.8811639505204, 137.005397392933 34.8808406337841, 137.004433320483 34.8797836677372, 137.005148980163 34.8791323034692, 137.005734630393 34.8795750334703, 137.007359665942 34.8808033750011)) ^^http://www.opengis.net/ont/geosparql#wktLiteral