メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.317910315384 43.1030150598121, 141.317567002929 43.1032421632552, 141.317186388089 43.1035111591898, 141.316768798242 43.1038066467242, 141.316327742134 43.1040923066222, 141.316082024925 43.1039159588449, 141.315771972668 43.103672062983, 141.315368654018 43.1033698764835, 141.315965648182 43.1029724062892, 141.31655967294 43.1025867240935, 141.317008334554 43.102614646502, 141.317329185072 43.1026340708315, 141.317955783184 43.1026500071189, 141.31844130525 43.1026586737113, 141.318258960112 43.1027842000337, 141.317910315384 43.1030150598121)) ^^http://www.opengis.net/ont/geosparql#wktLiteral