メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.03696243308 42.9106244157985, 143.036929826891 42.9108739689274, 143.036984336865 42.9108830188465, 143.037003128014 42.9109198848827, 143.036992807653 42.911048733976, 143.036907894611 42.9110415796768, 143.036143873359 42.9109773299406, 143.035094671416 42.9109051098564, 143.035235852706 42.9098286153694, 143.036277074899 42.9099028587047, 143.037049577238 42.9099578363282, 143.03696243308 42.9106244157985)) ^^http://www.opengis.net/ont/geosparql#wktLiteral