メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.302680888082 43.1220488214129, 141.301970377639 43.1224187181586, 141.301538415647 43.1226498344469, 141.301083474461 43.1228951768905, 141.300362157106 43.1221754380977, 141.300045247344 43.1218519730828, 141.30045196904 43.1216258575515, 141.30088224044 43.1213866439662, 141.301856440304 43.1208449400324, 141.302232460347 43.1212016623601, 141.302942692506 43.1219125762964, 141.302680888082 43.1220488214129)) ^^http://www.opengis.net/ont/geosparql#wktLiteral