メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.962952690957 43.5461655272641, 144.963434667001 43.5464702323827, 144.962691523598 43.5470536635547, 144.962196189502 43.546752928564, 144.961358848832 43.5462158472636, 144.959645896001 43.5450374124547, 144.960380210988 43.5444423618057, 144.960889038602 43.5447902492542, 144.961408458715 43.5451327147697, 144.961561276187 43.5452334398906, 144.962355805879 43.5457603563736, 144.962434178223 43.5458135190899, 144.962556826203 43.5458967830279, 144.962952690957 43.5461655272641)) ^^http://www.opengis.net/ont/geosparql#wktLiteral