メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.871525596761 35.2540032266594, 136.871276555058 35.2539288125985, 136.871226022128 35.2539137584797, 136.871113970606 35.2535579855182, 136.871062721138 35.2534037734718, 136.871026254209 35.2532745967956, 136.871002975534 35.253225032691, 136.870990260975 35.2531979588716, 136.870929716167 35.2531032314751, 136.870878887331 35.2530101477489, 136.8708101555 35.252729482242, 136.870800384541 35.2526895280334, 136.871346716907 35.2526055144625, 136.871410100107 35.2531007469914, 136.871525596761 35.2540032266594)) ^^http://www.opengis.net/ont/geosparql#wktLiteral