メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.185400210836 34.8059289969417, 137.185298058124 34.8065022909229, 137.185134123207 34.806491048647, 137.185120469071 34.8065248558922, 137.18510682655 34.8066262732954, 137.185052244193 34.8069305276153, 137.184983986503 34.8071671738503, 137.18484741317 34.8073474888345, 137.184492142206 34.8069418822535, 137.184177859444 34.8065588015937, 137.183931878066 34.8061193693572, 137.183760316091 34.8057078164394, 137.184286993026 34.8057474653239, 137.184710491672 34.8057924769547, 137.185400210836 34.8059289969417)) ^^http://www.opengis.net/ont/geosparql#wktLiteral