メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.512983957269 43.0947724741696, 141.513878536134 43.0953744831798, 141.514118333483 43.0955367271622, 141.514433616827 43.0957424276351, 141.514551986607 43.0958271622392, 141.514823360439 43.0960214672908, 141.514988881519 43.0961399104585, 141.51542425497 43.0964516625396, 141.515730602954 43.0966670778014, 141.51658123164 43.0972653392683, 141.515514304026 43.0977771755187, 141.514795382982 43.0981220251214, 141.514594228923 43.0982219365187, 141.512639194432 43.0991924169141, 141.511473801816 43.0997778460809, 141.510969866696 43.100030871081, 141.510722627721 43.1001550929482, 141.509471572422 43.0993016458595, 141.508624663361 43.0987053298472, 141.507457769968 43.0978837231154, 141.505378062809 43.096416746728, 141.505650184786 43.0962972649458, 141.507357852162 43.0954645259562, 141.507875865901 43.095226860716, 141.509265085778 43.0945289705641, 141.511231305109 43.093585622221, 141.512167506882 43.0942228659995, 141.512983957269 43.0947724741696)) ^^http://www.opengis.net/ont/geosparql#wktLiteral