メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.806988179011 35.3164344228145, 134.787736439378 35.3208406215853, 134.783452406497 35.3158503944994, 134.785216854143 35.3137755794859, 134.805912446971 35.3120981712237, 134.806988179011 35.3164344228145)) ^^http://www.opengis.net/ont/geosparql#wktLiteral