メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.683881155086 35.2887475920014, 136.682443576096 35.2889252650966, 136.682335299911 35.2883847024746, 136.682405765595 35.2883710389158, 136.682276481046 35.2878611671184, 136.682666420866 35.287808492699, 136.682468342699 35.2868056791692, 136.68369781131 35.2866515491499, 136.683595027451 35.2861112879104, 136.684504859862 35.2859356694987, 136.684370514563 35.2867966067822, 136.683881155086 35.2887475920014)) ^^http://www.opengis.net/ont/geosparql#wktLiteral