メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.151808514166 35.0712561232134, 137.152686028572 35.0712683723872, 137.152716025655 35.0707010221257, 137.153819949883 35.07136030469, 137.153779162718 35.0717404603483, 137.153653983109 35.0723301926368, 137.152003345181 35.0722725476548, 137.151207313271 35.0722630541522, 137.150095706277 35.0722359635273, 137.150040849186 35.0722343359361, 137.150224510536 35.0711933918277, 137.1507514719 35.0712182020337, 137.151272941468 35.0712427268806, 137.151288401482 35.0711437808406, 137.151364954687 35.0706972884273, 137.151421290688 35.0702067068672, 137.151468364164 35.0699374741624, 137.151619513815 35.0700294068118, 137.151808514166 35.0712561232134)) ^^http://www.opengis.net/ont/geosparql#wktLiteral