メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.003567668791 43.5683864516556, 145.003490702458 43.5683358854693, 145.003023114663 43.5680285413739, 145.002709848257 43.5678350494009, 145.00276429592 43.5677904912637, 145.003271104083 43.5673760544395, 145.004039400084 43.5678390756331, 145.004115987148 43.567779533206, 145.004161222044 43.5678086789076, 145.0042227585 43.5678474530168, 145.003567668791 43.5683864516556)) ^^http://www.opengis.net/ont/geosparql#wktLiteral