メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.103980725219 37.8661721358183, 139.10421193272 37.8667200102084, 139.103401725307 37.8668115847828, 139.102596970132 37.8669027024078, 139.101595980455 37.8670159334109, 139.101718612738 37.866438233768, 139.101735245265 37.8663597313873, 139.102009064841 37.8650698760046, 139.102237523659 37.8650802555362, 139.102581230251 37.8650956755407, 139.102759946913 37.8651037726762, 139.103558261327 37.8651398132011, 139.103683476004 37.8654467880277, 139.103960343356 37.8661118429751, 139.103980725219 37.8661721358183)) ^^http://www.opengis.net/ont/geosparql#wktLiteral