メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.351789855212 43.1107876198667, 141.352113454763 43.1108316347283, 141.352184130145 43.1108427347676, 141.352361586526 43.1108704902136, 141.352975854124 43.1109525639777, 141.353044917923 43.1109623151108, 141.352749139058 43.1122422993966, 141.352218277337 43.1121666411274, 141.352042404448 43.1121353115855, 141.351737706501 43.1120914430444, 141.351476962486 43.1120548083048, 141.350914825388 43.1119650466305, 141.351227524233 43.1107117085579, 141.351758443172 43.1107827327153, 141.351789855212 43.1107876198667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral