メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.623013356547 34.6474709162778, 135.621872180006 34.6474672466796, 135.621839614056 34.6464712574883, 135.621816189645 34.6455267114351, 135.621817661195 34.6454840348533, 135.621793377971 34.6444563765129, 135.621779528166 34.6444567563938, 135.621733615175 34.6424846945255, 135.621958854469 34.6424834209859, 135.622938850302 34.6424692662284, 135.622945843581 34.6425908514878, 135.622989695142 34.6444031690365, 135.622958832882 34.6444813926846, 135.623034177977 34.6467469547395, 135.622998224571 34.6468293878747, 135.623013356547 34.6474709162778)) ^^http://www.opengis.net/ont/geosparql#wktLiteral