メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.32852471299 36.6328604667544, 137.327932812994 36.6328447282162, 137.327404273837 36.6328520642073, 137.327320400562 36.6328532322677, 137.326166978406 36.6329580784306, 137.325220211018 36.6331295949575, 137.3251507847 36.6328522793254, 137.325024413177 36.632578911337, 137.324628936549 36.6318792284994, 137.325149552058 36.6311017882117, 137.326075551856 36.6312305930171, 137.326611879209 36.6311724883617, 137.326587871836 36.6310386038373, 137.327361509403 36.6309534201689, 137.328562325142 36.6309425648362, 137.32852471299 36.6328604667544)) ^^http://www.opengis.net/ont/geosparql#wktLiteral