メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.989049803736 43.5550566324873, 144.989253663351 43.555189673504, 144.98946152938 43.5553257827566, 144.988933858827 43.5557492021594, 144.988909040785 43.5557691003032, 144.988899397697 43.5557782269869, 144.98848760119 43.5555075291606, 144.988319341086 43.5556392613904, 144.987986251464 43.5554325632797, 144.988681785466 43.5548258814376, 144.989049803736 43.5550566324873)) ^^http://www.opengis.net/ont/geosparql#wktLiteral