メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.301602730428 42.9340161242713, 143.301276519893 42.9362664385276, 143.301238212659 42.9365298215017, 143.300894094069 42.9388940066212, 143.300883785412 42.9389577491399, 143.298697229008 42.9388147554191, 143.298716357901 42.9387403827312, 143.298856037143 42.9375513110491, 143.29887619314 42.9373796632172, 143.298994717464 42.936371250301, 143.299025161738 42.9361122295218, 143.299282884072 42.9338651500782, 143.299329134115 42.933370237256, 143.300645847277 42.9327148635642, 143.301867944641 42.9321367925874, 143.301860059418 42.9322077576487, 143.301792098106 42.9330399637827, 143.301602730428 42.9340161242713)) ^^http://www.opengis.net/ont/geosparql#wktLiteral