メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.062925360926 42.920606444532, 143.064562578096 42.9207268241971, 143.064500703556 42.9211368087081, 143.064379492333 42.9219388949256, 143.064090500737 42.9219183733136, 143.063199397403 42.9218554279053, 143.062029747068 42.9217727181513, 143.062000720932 42.9217704626913, 143.06213249591 42.9209543074906, 143.062180813691 42.9206549117957, 143.062196124266 42.9205528217212, 143.062925360926 42.920606444532)) ^^http://www.opengis.net/ont/geosparql#wktLiteral