メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.351061467976 44.3520775565164, 143.351391793448 44.3528296835075, 143.352034538609 44.3543184243125, 143.35230784678 44.3547251875481, 143.352018900947 44.3548226548493, 143.352279869511 44.3551252612763, 143.351649324922 44.3554444895116, 143.350921661541 44.3547121585696, 143.350641297336 44.3543938092799, 143.350589931799 44.354335520705, 143.350029413084 44.3537776034076, 143.34969301974 44.3534340564251, 143.349236951046 44.3529424539983, 143.348794193731 44.3524652064825, 143.349461844648 44.3521239799788, 143.350792696029 44.351477311924, 143.350802499617 44.3514880104329, 143.351061467976 44.3520775565164)) ^^http://www.opengis.net/ont/geosparql#wktLiteral