メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.103807394953 43.818157029105, 144.104320399612 43.8190363445761, 144.103278856334 43.8193359625674, 144.103152049628 43.8191172538953, 144.103098818412 43.8191295087446, 144.103050243001 43.8190222689309, 144.103090696089 43.8190114159464, 144.103034478965 43.8189145657346, 144.10295677263 43.8189392440251, 144.102729319314 43.8184997278789, 144.102783945458 43.8184823505896, 144.102494006096 43.8179817912626, 144.102935930641 43.8178451585787, 144.103501397124 43.8176586843655, 144.103807394953 43.818157029105)) ^^http://www.opengis.net/ont/geosparql#wktLiteral