メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.880556700066 37.6913321421462, 138.880566662922 37.6913747690434, 138.880894285157 37.6921433998507, 138.881179941328 37.6928286800231, 138.880804234136 37.6928757889073, 138.880776447715 37.6928037950681, 138.880367904288 37.692865230614, 138.880439381506 37.6929931159817, 138.880214768691 37.6930172113446, 138.879711663826 37.6930362902764, 138.87971750008 37.6932245049451, 138.879610032882 37.6932306228635, 138.879609963761 37.6932171074297, 138.87938041688 37.6932295305243, 138.879376567584 37.6934294628697, 138.879061481868 37.6934400483066, 138.879061383377 37.6934207608839, 138.879058402177 37.6933139120967, 138.878792103375 37.6933109667775, 138.878789379353 37.6932546603007, 138.878401046342 37.6932675911757, 138.878380585623 37.6930851954913, 138.878055735016 37.6930997525481, 138.877866399301 37.6931285167124, 138.877881628656 37.6928926486567, 138.877857973696 37.6928485174285, 138.877782135195 37.6927071270865, 138.877655751421 37.6925554806474, 138.877477730727 37.6923264248792, 138.877391532374 37.6921854909346, 138.877376666835 37.6921449915344, 138.877800725045 37.6919475167262, 138.877858399075 37.6920008305696, 138.878665952045 37.6915643327701, 138.879391195313 37.6912736684653, 138.879404082848 37.6914037143408, 138.879523607414 37.6913741864907, 138.879543277709 37.6914012968895, 138.879989554276 37.6912542838846, 138.87996972233 37.6911960628263, 138.880362423157 37.6910783643058, 138.88034008283 37.6910143775005, 138.880409651616 37.6910034541704, 138.880556700066 37.6913321421462)) ^^http://www.opengis.net/ont/geosparql#wktLiteral