メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.329633663978 43.7965445112289, 142.329189691971 43.7968772451694, 142.328735256117 43.7972112321716, 142.328593984499 43.7973111676836, 142.327747451093 43.7971554236464, 142.325445081743 43.7967155630058, 142.32603803381 43.7962789861344, 142.325660790617 43.7959978654355, 142.325623279629 43.7960209024566, 142.325196920366 43.7957189094693, 142.325214195855 43.7956854077488, 142.32481529991 43.795401168745, 142.325497690204 43.7949017741471, 142.326341761534 43.7955141664866, 142.326723324542 43.7957837858723, 142.327036952789 43.7959980004059, 142.327489946328 43.7956650579872, 142.32837598861 43.7962786720317, 142.328839023919 43.7959507454388, 142.329633663978 43.7965445112289)) ^^http://www.opengis.net/ont/geosparql#wktLiteral