メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.996100822278 43.1094207113979, 142.996379320836 43.1093441329296, 142.996707236075 43.1092818596995, 142.997023514612 43.1092217716677, 142.997648319904 43.1091825231776, 142.998158557304 43.1091587908867, 142.998820035853 43.1112245752276, 142.995735973251 43.1118152462441, 142.995497368906 43.1111545662675, 142.995504932297 43.1111528992732, 142.995186085064 43.110231534838, 142.995168077362 43.1101795377082, 142.994966006201 43.10961342584, 142.995532060174 43.1095141598587, 142.995631355699 43.1094978290415, 142.996100822278 43.1094207113979)) ^^http://www.opengis.net/ont/geosparql#wktLiteral