メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.395696729123 43.8173214383482, 142.395291113864 43.8175981907683, 142.394902713997 43.8178720183722, 142.394579256704 43.8181158956983, 142.394575062238 43.8181187840316, 142.39413023842 43.8184446484762, 142.39369277192 43.8187625211446, 142.393369380629 43.8189984668051, 142.393255308224 43.8190794609134, 142.391838237581 43.8180812980798, 142.391653539738 43.8179489532202, 142.391807789593 43.8178368823628, 142.392966638114 43.8169714438251, 142.393332415734 43.8166936416681, 142.393714839396 43.8164487977062, 142.39407851178 43.8161604840613, 142.394895099178 43.8167473722396, 142.395677296175 43.8173075222451, 142.395696729123 43.8173214383482)) ^^http://www.opengis.net/ont/geosparql#wktLiteral