メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.777571716933 35.0769556764262, 136.77454223894 35.0769254839633, 136.773066432207 35.0769066128499, 136.773085783592 35.0762213750016, 136.773068614506 35.0758671539097, 136.773046843132 35.0757796864359, 136.772906528656 35.0754440799537, 136.772787630491 35.0750366400378, 136.77271626491 35.074893445934, 136.772299623422 35.074391301274, 136.771904956607 35.0739346530776, 136.771597312833 35.073588503083, 136.771549085615 35.073516161328, 136.771527832127 35.0734011593346, 136.774088722729 35.0735077913209, 136.776184621618 35.0736091453709, 136.776573582149 35.0742364023861, 136.776798903607 35.0746050256788, 136.776938240316 35.0747409001238, 136.777137418203 35.0750495076987, 136.777262361952 35.0752682953947, 136.77734086465 35.0754436233969, 136.77738680203 35.0755944800298, 136.777423219139 35.0757938978691, 136.777517793499 35.0765159828356, 136.777571716933 35.0769556764262)) ^^http://www.opengis.net/ont/geosparql#wktLiteral