メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.224504976027 34.7103426154675, 135.22430709691 34.7107226850667, 135.223545618446 34.7104645720874, 135.22286893517 34.7102238644599, 135.222288299478 34.7100320332376, 135.222383211199 34.7097203297393, 135.22246235203 34.7094650838067, 135.222536855139 34.7092864974677, 135.223210849012 34.7095317340404, 135.223858161874 34.7098335044978, 135.223904795442 34.7098557004089, 135.224619804691 34.7101073902461, 135.224521664982 34.7103084065679, 135.224504976027 34.7103426154675)) ^^http://www.opengis.net/ont/geosparql#wktLiteral