メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.329599184901 43.7609828222239, 142.329620208968 43.7609892073982, 142.330225947979 43.7611731147442, 142.330416185493 43.7612295892609, 142.330728732034 43.7613376634801, 142.330593216317 43.761571559973, 142.330101962915 43.7624136167792, 142.329716380379 43.7622920551283, 142.329592387823 43.7622564529442, 142.329008079115 43.7620772046576, 142.328977505454 43.7620698421538, 142.328627592044 43.7619568661614, 142.328226741375 43.7618365402993, 142.328518121313 43.7613416467473, 142.328855216453 43.7607445967471, 142.329599184901 43.7609828222239)) ^^http://www.opengis.net/ont/geosparql#wktLiteral