メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.152344724326 35.0743736291128, 137.153432038289 35.074429498378, 137.153373090097 35.0757070926747, 137.15284160227 35.0759194931975, 137.152584467063 35.0753369578907, 137.152503378532 35.0753454671702, 137.152382747577 35.0753650979901, 137.152153099146 35.0753811900079, 137.151592706712 35.0753904687999, 137.149709419325 35.0753530423314, 137.149666493445 35.0753521189844, 137.149724856276 35.0752278270178, 137.149841815751 35.074279202814, 137.150449607195 35.0743032529564, 137.151417935983 35.0743398913211, 137.152344724326 35.0743736291128)) ^^http://www.opengis.net/ont/geosparql#wktLiteral