メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.702619308211 35.3716785509854, 136.70269001534 35.3729841500262, 136.701195453435 35.3727351409042, 136.70084325722 35.3726201874193, 136.700601284434 35.3725279136197, 136.700075005502 35.3723419319091, 136.700049553326 35.3717974061119, 136.699812584724 35.3680375979639, 136.700478654163 35.368018072696, 136.701767119761 35.3679629262488, 136.701761406471 35.3680607190655, 136.702421116305 35.368510729353, 136.702619308211 35.3716785509854)) ^^http://www.opengis.net/ont/geosparql#wktLiteral