メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.633095436439 35.3588961193448, 136.633094949535 35.3589017275643, 136.633072673861 35.3591583901357, 136.633046236619 35.3594073579049, 136.631698077478 35.3593242117738, 136.631714085397 35.3590604097362, 136.63173406784 35.3588262726107, 136.632215845635 35.3588460059363, 136.632787101877 35.3588773184103, 136.633095436439 35.3588961193448)) ^^http://www.opengis.net/ont/geosparql#wktLiteral