メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.394201998999 38.4297341993634, 140.393016958767 38.4298406921677, 140.392336640807 38.4299066965304, 140.391275748287 38.4300001234835, 140.389552581975 38.4301417186785, 140.389482114021 38.4298829949793, 140.391183371794 38.4297231588712, 140.391656295566 38.4296807349857, 140.391718746459 38.429675057787, 140.392685817815 38.4295874688205, 140.392965078334 38.4295621913431, 140.394166345923 38.4294501287503, 140.394201998999 38.4297341993634)) ^^http://www.opengis.net/ont/geosparql#wktLiteral