メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.18250903176 34.7953808279108, 137.182126590721 34.7955160969107, 137.18194903828 34.7956288025951, 137.181757830225 34.7957753146958, 137.181716879843 34.7959105397878, 137.181088536423 34.795910615243, 137.180610448918 34.7959219388132, 137.180637685511 34.7954599340893, 137.18092428996 34.7941753122178, 137.1811972723 34.793138594753, 137.181812153371 34.7941864735561, 137.18250903176 34.7953808279108)) ^^http://www.opengis.net/ont/geosparql#wktLiteral