メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.885257730225 35.2475098295115, 136.885050602937 35.2475110350961, 136.885021660834 35.2462174420811, 136.885283409475 35.2462335466209, 136.885317154712 35.2462370760819, 136.88532465445 35.2466177291229, 136.885229693028 35.2466225072861, 136.885225422787 35.2467026382004, 136.885248224283 35.2472497356427, 136.885257730225 35.2475098295115)) ^^http://www.opengis.net/ont/geosparql#wktLiteral