メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.669962376753 35.1218515095759, 136.669942399316 35.1218245771534, 136.669881902847 35.1217429374408, 136.669341223711 35.1211607715944, 136.668537148106 35.120273005967, 136.668106780284 35.1198147343349, 136.667658919903 35.119371065093, 136.667452392323 35.1191231122478, 136.66730220741 35.1188632291953, 136.667186103261 35.1186359045568, 136.682410245505 35.1154689210087, 136.683490462856 35.1190357987233, 136.669962376753 35.1218515095759)) ^^http://www.opengis.net/ont/geosparql#wktLiteral