メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.328244606539 43.7867386432678, 142.329234265287 43.7874438980599, 142.327755280945 43.788494558566, 142.327646676686 43.7885724251049, 142.327011911337 43.7880980454728, 142.327164147167 43.787939315781, 142.32255320167 43.7847698168268, 142.322935269345 43.7843926160359, 142.323756223372 43.7835985999266, 142.323954754906 43.7834154774415, 142.328244606539 43.7867386432678)) ^^http://www.opengis.net/ont/geosparql#wktLiteral