メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.395313717481 34.8363519046949, 137.394593810024 34.8373222984339, 137.394557654504 34.8373134915181, 137.393931448251 34.8371894343265, 137.392147949938 34.8366346520473, 137.392762296128 34.8351212993924, 137.393943568448 34.835008673054, 137.394988971844 34.8357234259326, 137.395467477512 34.8350724575398, 137.395994469673 34.8354350318604, 137.395313717481 34.8363519046949)) ^^http://www.opengis.net/ont/geosparql#wktLiteral