メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.152159152225 35.0733211500715, 137.153532849892 35.0733681882859, 137.153518273728 35.07378489896, 137.153432038289 35.074429498378, 137.152344724326 35.0743736291128, 137.151417935983 35.0743398913211, 137.150449607195 35.0743032529564, 137.149841815751 35.074279202814, 137.14996646231 35.0732704371962, 137.150095706277 35.0722359635273, 137.151207313271 35.0722630541522, 137.152003345181 35.0722725476548, 137.152159152225 35.0733211500715)) ^^http://www.opengis.net/ont/geosparql#wktLiteral