メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.351476962486 43.1120548083048, 141.351737706501 43.1120914430444, 141.352042404448 43.1121353115855, 141.352218277337 43.1121666411274, 141.352749139058 43.1122422993966, 141.352444381358 43.1134922546684, 141.351926015535 43.113421263322, 141.351434347864 43.1133494230683, 141.351186205861 43.1133105663025, 141.351155164771 43.1133065262086, 141.350642694986 43.1132394430506, 141.350914825388 43.1119650466305, 141.351476962486 43.1120548083048)) ^^http://www.opengis.net/ont/geosparql#wktLiteral