メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.932857003999 34.8933812175042, 136.93260544634 34.8933591119566, 136.932617443736 34.893135869769, 136.932637026985 34.8928980628988, 136.93265990642 34.892619975532, 136.932731961233 34.8926279321046, 136.932751740949 34.8926381121841, 136.932920333367 34.8927245732765, 136.932857003999 34.8933812175042)) ^^http://www.opengis.net/ont/geosparql#wktLiteral