メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.381088104942 43.7548695233105, 142.381433868302 43.7547667928947, 142.381606627719 43.7550649570698, 142.381482473203 43.7551062018974, 142.381530281241 43.7551823574285, 142.381647344805 43.7551476429073, 142.381653437786 43.7551457465929, 142.381775362412 43.7553561722064, 142.381609012625 43.7554137278675, 142.381853857046 43.7558481237721, 142.381304938994 43.7560058134228, 142.380348592128 43.7562886086712, 142.380053802986 43.7557425086705, 142.37972051111 43.7551325989226, 142.381055846414 43.7547478508142, 142.381088104942 43.7548695233105)) ^^http://www.opengis.net/ont/geosparql#wktLiteral