メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.158177555982 35.0692009450851, 137.158210184216 35.0692045382033, 137.158938093247 35.0692836333476, 137.158909853475 35.0696188604724, 137.158571628565 35.0695875568097, 137.158513419812 35.0699970092093, 137.158476500393 35.0703956879917, 137.157999125091 35.0704322587719, 137.157992723252 35.0703548600818, 137.157678018082 35.0703610230322, 137.157681645788 35.0701803087805, 137.157821333558 35.069922706473, 137.156742904434 35.0698013798216, 137.1568752925 35.069044308994, 137.156932258602 35.0686885212337, 137.158355494548 35.0688512944183, 137.158332802725 35.0688943231561, 137.158177555982 35.0692009450851)) ^^http://www.opengis.net/ont/geosparql#wktLiteral