メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.443954301357 36.4040583783824, 136.4435406461 36.4041586720973, 136.443438117509 36.4038778834012, 136.442288644443 36.4041462957189, 136.441306291697 36.4043651735193, 136.441300887333 36.4042015981965, 136.441272134783 36.4039401620607, 136.441186018654 36.4036327548895, 136.441069113478 36.4033675735614, 136.440986178212 36.4032428068306, 136.442178886068 36.4029651320826, 136.443073067404 36.402747044181, 136.443463107121 36.4026519220633, 136.443954301357 36.4040583783824)) ^^http://www.opengis.net/ont/geosparql#wktLiteral