メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.396205596881 44.1688622935659, 142.394648531328 44.1685892692285, 142.395036553669 44.167368761866, 142.39509279035 44.1671918779803, 142.395770599789 44.1673009630036, 142.396641650054 44.1674248242993, 142.396205596881 44.1688622935659)) ^^http://www.opengis.net/ont/geosparql#wktLiteral