メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.925262682944 35.1910323451398, 136.925036721327 35.191039988832, 136.925000989099 35.19070596558, 136.925025596009 35.1907031981551, 136.925019340437 35.1905046603516, 136.925042891043 35.1905037215925, 136.925708623665 35.1904771018884, 136.925726856055 35.1909651073698, 136.925728785416 35.1910166612749, 136.925262682944 35.1910323451398)) ^^http://www.opengis.net/ont/geosparql#wktLiteral