メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.16555982947 35.1032854237113, 137.163574605891 35.1031260475893, 137.163577581765 35.1021087281452, 137.163579642354 35.1014032601466, 137.163937485448 35.1016462364537, 137.163991163501 35.1016776475137, 137.164043911838 35.1017027194295, 137.164180012862 35.1017939936264, 137.164399801655 35.1019330176558, 137.16442089594 35.1019412580139, 137.165117617944 35.1022031758454, 137.165133245674 35.1022104298799, 137.16561482802 35.1023926212954, 137.16555982947 35.1032854237113)) ^^http://www.opengis.net/ont/geosparql#wktLiteral