メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.785109826023 35.4123477021823, 136.782660305963 35.4124313834091, 136.78263036237 35.4119885253507, 136.785083391312 35.4119241148082, 136.785095667332 35.4121210482218, 136.785109826023 35.4123477021823)) ^^http://www.opengis.net/ont/geosparql#wktLiteral