メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.277573298979 44.0218586703589, 144.277340018877 44.0227160903507, 144.277142913436 44.0226684325022, 144.276822175466 44.0225902077216, 144.276509131673 44.022514684145, 144.276260924094 44.0224544306717, 144.276061255444 44.0224058821966, 144.27587674561 44.0223618264038, 144.275690679271 44.0223177673433, 144.275577233992 44.0222943926896, 144.275702488645 44.0216748901588, 144.277573298979 44.0218586703589)) ^^http://www.opengis.net/ont/geosparql#wktLiteral