メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.157301513958 35.0897913269764, 137.157428857345 35.0901307266324, 137.157297663527 35.0901747303783, 137.15646950083 35.0904197955946, 137.156020643623 35.0904982003972, 137.155513612961 35.0904806746296, 137.155237936024 35.0904697947585, 137.155157590157 35.090106945343, 137.154983475721 35.0893568790024, 137.156196423521 35.0892424399808, 137.156447476198 35.0892465530018, 137.156563983381 35.0892667786459, 137.1571096682 35.0892794443185, 137.157301513958 35.0897913269764)) ^^http://www.opengis.net/ont/geosparql#wktLiteral