メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.774235608686 35.406787207585, 136.772894366807 35.4070053938274, 136.772893305544 35.4066749775272, 136.772865779646 35.4060825099169, 136.772827758497 35.4055077546148, 136.773563121443 35.4059332962209, 136.773794901465 35.4060892530028, 136.773980911432 35.4062300622504, 136.774056963831 35.4063153762415, 136.774132816538 35.4064508289533, 136.774235608686 35.406787207585)) ^^http://www.opengis.net/ont/geosparql#wktLiteral