メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.367231026312 43.7457745880635, 142.366963173676 43.746244400513, 142.366635933818 43.7468288964209, 142.366613048846 43.7469852095552, 142.366523851187 43.7470313614956, 142.365985099977 43.7468705402846, 142.365903836977 43.7468462919591, 142.365760043082 43.7468060031604, 142.365458610679 43.7467107068744, 142.364948406174 43.7465494306643, 142.364887639643 43.7465325445897, 142.365600912401 43.745297294445, 142.36627877034 43.744108293568, 142.366956716529 43.7443094043626, 142.367359000372 43.7444287491269, 142.367906592797 43.744593385411, 142.367622525469 43.7450928041415, 142.367231026312 43.7457745880635)) ^^http://www.opengis.net/ont/geosparql#wktLiteral