メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.109521668393 43.1020706457575, 145.106019199405 43.1018849134584, 145.105895138657 43.1006832403684, 145.106053660579 43.0989508126446, 145.106491153375 43.0941693142673, 145.107485895367 43.0944263137504, 145.109322858877 43.0943928394501, 145.109361893867 43.0941349732412, 145.109529867821 43.0930940014497, 145.111913334489 43.0932287416297, 145.111777110615 43.0935422047902, 145.111471785353 43.0942338061682, 145.111121041752 43.0953017173224, 145.110769917171 43.0963699177487, 145.110403700264 43.0974275247156, 145.110052539817 43.0984954420441, 145.109701764055 43.0995636312875, 145.109564501631 43.1004484908613, 145.109534007087 43.1017299744215, 145.109521668393 43.1020706457575)) ^^http://www.opengis.net/ont/geosparql#wktLiteral