メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.296241142276 31.2712676570764, 130.296549115781 31.2712906276189, 130.297274324412 31.2713501300318, 130.297726438702 31.2713738874712, 130.298133729214 31.2714017673256, 130.298699824948 31.2714774458227, 130.298497008892 31.2724535561621, 130.29842920171 31.2727801463668, 130.297872885467 31.2727343981102, 130.297187422392 31.2726793442824, 130.295297141655 31.2725515759982, 130.294268103389 31.272483766146, 130.294555518646 31.271886247288, 130.294861493887 31.2711866536558, 130.295416474076 31.2712118299264, 130.295938123152 31.2712403438835, 130.296241142276 31.2712676570764)) ^^http://www.opengis.net/ont/geosparql#wktLiteral