メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.923567405845 35.1307513859638, 136.923584566444 35.1307527595479, 136.923567560573 35.1312973947912, 136.923548400819 35.131297426992, 136.922930566862 35.1312944771122, 136.922926405857 35.1313386953462, 136.922488771895 35.1313192088359, 136.922488506715 35.131293362047, 136.922505039602 35.1310246523961, 136.922526549112 35.1306752455729, 136.922554579765 35.130216199292, 136.923129710732 35.1302493469371, 136.923605863752 35.1302785575544, 136.923567405845 35.1307513859638)) ^^http://www.opengis.net/ont/geosparql#wktLiteral