メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.366739694489 43.8018133069044, 142.36699895602 43.8020083648531, 142.367298703306 43.8022131565004, 142.366804514862 43.8025564428102, 142.366372288375 43.8028723272004, 142.366146077955 43.8030385672212, 142.365599199397 43.8026357828656, 142.364505504569 43.8018497195261, 142.364766575093 43.8016794735334, 142.364847566606 43.8016248580254, 142.365144218525 43.8014107657305, 142.365160510932 43.8014002540219, 142.36569586647 43.8010203645568, 142.366123949105 43.8013529646764, 142.366204959684 43.8014095101647, 142.366739694489 43.8018133069044)) ^^http://www.opengis.net/ont/geosparql#wktLiteral