メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.284647062582 38.380127702025, 140.283045689178 38.3802580383976, 140.28298102626 38.3798755393549, 140.282973375671 38.3791489784646, 140.282967341657 38.3789773497291, 140.282982503901 38.3788972191679, 140.283923347805 38.3788153596937, 140.284480132654 38.3787669057094, 140.284507123641 38.3790456592224, 140.284647062582 38.380127702025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral