メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.350060330567 43.1118476795212, 141.35054090166 43.1119159930794, 141.350914825388 43.1119650466305, 141.350642694986 43.1132394430506, 141.35023442041 43.1131693743449, 141.350074213379 43.1131496968993, 141.349750604864 43.1131056751953, 141.349628118944 43.1130862219057, 141.349163184269 43.1130180276997, 141.349476122487 43.1117578075881, 141.350060330567 43.1118476795212)) ^^http://www.opengis.net/ont/geosparql#wktLiteral