メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.771232822953 35.3779559477979, 136.774200484966 35.3780800417381, 136.77414690582 35.3790129613121, 136.774119902189 35.379669420087, 136.772127971949 35.3795884576925, 136.771140056011 35.3795549413927, 136.769693121344 35.3795030767752, 136.769364306028 35.3794885436927, 136.769309624272 35.3794614618608, 136.769268756057 35.3794142149077, 136.769222770897 35.3792884289626, 136.769229165887 35.378748306004, 136.769287145295 35.3779024369957, 136.771232822953 35.3779559477979)) ^^http://www.opengis.net/ont/geosparql#wktLiteral