メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.99070886426 34.9041101161046, 136.991202040862 34.9053045894935, 136.989282706167 34.9058723487104, 136.988741026958 34.9046541310238, 136.988446953875 34.9039699105684, 136.988942291531 34.9038387227421, 136.990436899632 34.9034441740388, 136.991089447076 34.9032660183811, 136.991778750164 34.9030778408385, 136.991840357355 34.9030617306829, 136.99217649301 34.9037022662709, 136.99070886426 34.9041101161046)) ^^http://www.opengis.net/ont/geosparql#wktLiteral