メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.311413588579 36.310694061324, 136.310829503911 36.3108532364776, 136.310752505975 36.3106710292847, 136.310590246419 36.3103065195307, 136.311174313304 36.3101088317846, 136.311362935499 36.3104572634232, 136.311415425279 36.3105896923889, 136.311418440196 36.310648118139, 136.311413588579 36.310694061324)) ^^http://www.opengis.net/ont/geosparql#wktLiteral