メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.009120409732 34.9007648705031, 137.008849279622 34.900878330004, 137.007818485503 34.9011155266773, 137.007760917791 34.9011287626779, 137.007040591621 34.9013041004873, 137.006922445526 34.9013508500493, 137.006796358182 34.901140458283, 137.00628746032 34.9004693881506, 137.007260282028 34.8999562635623, 137.008128791941 34.8994982111577, 137.009120409732 34.9007648705031)) ^^http://www.opengis.net/ont/geosparql#wktLiteral