メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.209977929946 36.698529816891, 137.210241855802 36.698915827336, 137.210474393763 36.6993091015646, 137.209737699366 36.6995643136496, 137.208808471885 36.6999281628199, 137.208635323116 36.6997160929434, 137.208447023364 36.6995178978903, 137.207943159292 36.6990284051894, 137.208217867375 36.698902912446, 137.209016436536 36.6985663590991, 137.209403928477 36.6983920988648, 137.20980214766 36.6982263580939, 137.209977929946 36.698529816891)) ^^http://www.opengis.net/ont/geosparql#wktLiteral