メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.62788804814 35.3618707199806, 136.627057257731 35.3619260247491, 136.626945338216 35.3611421516437, 136.626942079404 35.3611215732938, 136.627716093477 35.361051509113, 136.627722248603 35.3610825224383, 136.627776194447 35.3613538891911, 136.627808713206 35.3615056536108, 136.627883091351 35.3618532333674, 136.62788804814 35.3618707199806)) ^^http://www.opengis.net/ont/geosparql#wktLiteral