メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.995028250563 38.8123363008499, 139.99483423451 38.812434566822, 139.99394612048 38.8126401741099, 139.993614719819 38.8127477271142, 139.993319687556 38.8128223203608, 139.993100453979 38.8128462213059, 139.992832826809 38.8128085437422, 139.99245183777 38.8126882674536, 139.993975592503 38.812359288074, 139.995028250563 38.8123363008499)) ^^http://www.opengis.net/ont/geosparql#wktLiteral