メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.373828201437 43.7868785168385, 142.373583404774 43.7870235121373, 142.372933433386 43.7874058983185, 142.372386627644 43.7877435473136, 142.372089321332 43.7879148695308, 142.371665822832 43.7882107219787, 142.370137266488 43.7889731222188, 142.368792868128 43.789981075243, 142.368628862745 43.7899665114965, 142.368206625427 43.7902496759955, 142.366674604467 43.7891664736357, 142.367943315958 43.7882070926739, 142.368523237531 43.7879489071671, 142.369365354287 43.787352530598, 142.369531198454 43.7874657366075, 142.36996226243 43.7872363193003, 142.370924218516 43.7865572128724, 142.372128173472 43.7855246366668, 142.372437659867 43.7857874039123, 142.372455247989 43.7858022761938, 142.372895539186 43.7861746964911, 142.372906767765 43.7861841953638, 142.373377745726 43.7865544020436, 142.373394501081 43.7865664621593, 142.373828201437 43.7868785168385)) ^^http://www.opengis.net/ont/geosparql#wktLiteral