メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.261437067313 40.727658228204, 141.261901392818 40.727948144275, 141.262219484996 40.7282062363868, 141.260904127594 40.7294818770219, 141.260075636623 40.7302904855662, 141.25941560807 40.7299875647853, 141.258544478069 40.7295817073907, 141.258332393655 40.7294776525669, 141.25738283853 40.729026619818, 141.257184670811 40.7289294067638, 141.257155087817 40.7289238865323, 141.258865746818 40.7280844047268, 141.260640268237 40.7272376175246, 141.261437067313 40.727658228204)) ^^http://www.opengis.net/ont/geosparql#wktLiteral