メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.274764631434 36.7571091355825, 137.275862167587 36.7569035079466, 137.276338000735 36.7568056885755, 137.276341672773 36.7568184988651, 137.276566539887 36.7575351194339, 137.276655446152 36.7578397660183, 137.276723940869 36.7580745140757, 137.276701339367 36.7580789712099, 137.274288598192 36.7585480294071, 137.274041994431 36.757802414272, 137.273968978111 36.7575816084629, 137.273651868719 36.7566364455361, 137.274111743927 36.756543647805, 137.274538342348 36.7564574977034, 137.274764631434 36.7571091355825)) ^^http://www.opengis.net/ont/geosparql#wktLiteral