メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.131378017135 34.6464517667632, 135.131759456186 34.6466994300246, 135.131439408229 34.6471657947681, 135.131422895387 34.6471501269162, 135.131169050476 34.6474109682749, 135.130931435964 34.6476581804683, 135.130036541692 34.647046517707, 135.130263400666 34.6468151536743, 135.130439008675 34.6466427214713, 135.13052813267 34.6465519891867, 135.130925249168 34.6461594949687, 135.131378017135 34.6464517667632)) ^^http://www.opengis.net/ont/geosparql#wktLiteral