メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.15358229372 35.0831314765841, 137.153509202956 35.0831364678036, 137.153503679587 35.0830607579915, 137.153417700653 35.0818845535226, 137.153352247779 35.080922799772, 137.153888143094 35.0808866037019, 137.155281038761 35.0807925558916, 137.156094410233 35.0807338479798, 137.155993301657 35.0813728149166, 137.155762955767 35.0828286416297, 137.155740101954 35.0829449134756, 137.155002320242 35.0829992627857, 137.154171926671 35.0830626099786, 137.15358229372 35.0831314765841)) ^^http://www.opengis.net/ont/geosparql#wktLiteral