メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.708358744692 34.8264922431836, 134.707846519065 34.8266715197361, 134.706881369805 34.8269807252533, 134.706652043222 34.8265446337741, 134.705986949293 34.8251380337654, 134.705817275627 34.8247947222481, 134.706249349954 34.8247662584528, 134.707405291729 34.8246901007387, 134.707574268975 34.8249074146464, 134.707867393683 34.8255032521897, 134.708358744692 34.8264922431836)) ^^http://www.opengis.net/ont/geosparql#wktLiteral