メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.336515890691 43.0536097903652, 141.33648505564 43.053800418138, 141.336451900071 43.0540954580063, 141.336415835999 43.054416371169, 141.336404385561 43.0545182599464, 141.336374206797 43.0545161203001, 141.33585046999 43.0544777547298, 141.334712699274 43.0543916436145, 141.334784233203 43.0537800684308, 141.334795990372 43.0536795209323, 141.334810721306 43.0535531861978, 141.334833239672 43.0533610151665, 141.334855714653 43.0531782681495, 141.335846299955 43.0532354221361, 141.336555782312 43.05328061487, 141.336550711156 43.0533224561008, 141.336515890691 43.0536097903652)) ^^http://www.opengis.net/ont/geosparql#wktLiteral