メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.473036520338 43.4624531187254, 142.473365007797 43.4628533062059, 142.473658089904 43.4632078839647, 142.47379769528 43.4633630682019, 142.473833115558 43.4634114890886, 142.472277098794 43.4641419426229, 142.470943941541 43.4647749636247, 142.469436568813 43.4654382547837, 142.469630339175 43.4643381868799, 142.469789691123 43.4634663944827, 142.469769825356 43.4633865414286, 142.469808729084 43.4633123073803, 142.469832038469 43.4632637727234, 142.471024577422 43.4627308696923, 142.471884714635 43.4623384020851, 142.4726353579 43.4619860863623, 142.473036520338 43.4624531187254)) ^^http://www.opengis.net/ont/geosparql#wktLiteral