メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.288274229868 43.0694318212092, 141.288805739857 43.0698321699845, 141.288413360116 43.0700368366128, 141.288418887808 43.0700452523445, 141.288390090915 43.0700648429913, 141.288430694987 43.0701122356261, 141.288463743695 43.0700968288764, 141.288532671953 43.070154866812, 141.288814426758 43.0700067295353, 141.288841196542 43.0700247470855, 141.288913115903 43.0699835064558, 141.288900571787 43.0699636378236, 141.288946587555 43.0699410265025, 141.289053612129 43.0700228039821, 141.288586985043 43.0702825484786, 141.288478809533 43.0703419116878, 141.288138406442 43.0705289405556, 141.28794378824 43.0703865058904, 141.287114908767 43.0708984942038, 141.286632924668 43.0705271786112, 141.28665530735 43.0705129500846, 141.287083742918 43.0701259463567, 141.287289159841 43.0698848282443, 141.28730574592 43.0698609149452, 141.287441491337 43.0696643616321, 141.287569635996 43.0692976172846, 141.288274229868 43.0694318212092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral