メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.630205942713 35.3613984385352, 136.627808713206 35.3615056536108, 136.627776194447 35.3613538891911, 136.627722248603 35.3610825224383, 136.627716093477 35.361051509113, 136.627672318892 35.3608536379584, 136.630216518396 35.3607480630454, 136.630210988731 35.3609603623788, 136.630205942713 35.3613984385352)) ^^http://www.opengis.net/ont/geosparql#wktLiteral