メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.331557862616 37.3928102862125, 140.33141880371 37.3927355449362, 140.330595391843 37.3922746595104, 140.33039231385 37.3921583694815, 140.330522248989 37.391693340367, 140.330569862893 37.3913481899783, 140.330679630618 37.3909026746604, 140.331480647408 37.3911350022013, 140.33164754611 37.3911861947919, 140.331727438196 37.391210699861, 140.331477176032 37.3919237549238, 140.331824638639 37.3920792802939, 140.331557862616 37.3928102862125)) ^^http://www.opengis.net/ont/geosparql#wktLiteral