メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.308826462413 43.7757024756582, 142.308310315153 43.776231713924, 142.307839078656 43.776730424558, 142.307590342268 43.7764833517443, 142.306981200413 43.7759077021404, 142.307090647215 43.7757727362059, 142.308277573667 43.7743090685852, 142.308370235506 43.7743151218321, 142.308549962719 43.7741288552428, 142.308889675917 43.7743046800446, 142.309001884824 43.7742049230218, 142.309400795307 43.7744122549803, 142.309530029058 43.774483388313, 142.310001280866 43.7740192678837, 142.310310278006 43.7741737427701, 142.309816606779 43.7746765189936, 142.309224766765 43.775289237886, 142.308826462413 43.7757024756582)) ^^http://www.opengis.net/ont/geosparql#wktLiteral