メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.638848426108 35.4438801892109, 139.63768303932 35.4444988627624, 139.637615676769 35.444419920385, 139.637232996126 35.4439639046847, 139.636741025022 35.4433859942426, 139.63720200268 35.4430675809831, 139.637568553982 35.442846545879, 139.637925730989 35.442683909608, 139.638124114939 35.4429828054467, 139.638382394578 35.4433091560489, 139.638848426108 35.4438801892109)) ^^http://www.opengis.net/ont/geosparql#wktLiteral