メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.400984081793 34.7758679528092, 135.400968861355 34.775885552, 135.400944746744 34.7759150607797, 135.400564029837 34.7763802532677, 135.399613117899 34.7758618146639, 135.399797111583 34.7752973602206, 135.399835737131 34.7751951867844, 135.399908072625 34.7750266577944, 135.401128299844 34.7757007632489, 135.400984081793 34.7758679528092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral