メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.263706713737 42.553790779839, 143.263684591635 42.5537994158401, 143.255104543244 42.5571983688092, 143.250955980114 42.5588415803595, 143.246347743568 42.5607055538772, 143.237941911637 42.5639943643069, 143.230684211912 42.5667637856806, 143.221851116504 42.5701285124305, 143.218732733126 42.5658322299975, 143.230455185366 42.5611452290189, 143.223999604133 42.5522023586094, 143.23619612023 42.5474102950336, 143.242186275959 42.545055774014, 143.243829401035 42.5473665585209, 143.255772630306 42.5425454474262, 143.263706713737 42.553790779839)) ^^http://www.opengis.net/ont/geosparql#wktLiteral