メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.030861553482 43.5633674513532, 142.030698591949 43.5634898964754, 142.030619657471 43.5635491713445, 142.030264590769 43.5634905475264, 142.029603296946 43.5634131943666, 142.029431535112 43.5633097684752, 142.02908394734 43.5632894474931, 142.029155593846 43.563088311003, 142.029221748032 43.5629939543942, 142.029435438681 43.5627047249043, 142.03048479748 43.5628049021318, 142.030714559616 43.562741517823, 142.031259501747 43.5627879831322, 142.031455239987 43.5627932420215, 142.031549603977 43.5628326978638, 142.031475172293 43.5628905404758, 142.030861553482 43.5633674513532)) ^^http://www.opengis.net/ont/geosparql#wktLiteral