メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((133.326878824527 33.5233501541279, 133.327254154429 33.5250939433377, 133.327309379641 33.5253797741243, 133.326706781998 33.5254403886874, 133.326611008689 33.5250151268576, 133.326265070188 33.5234889422277, 133.326569619111 33.5234247055601, 133.326878824527 33.5233501541279)) ^^http://www.opengis.net/ont/geosparql#wktLiteral