メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.160602086223 34.6723050976507, 135.160540020707 34.6723731309076, 135.160434669724 34.6724775177363, 135.160132052391 34.6727703028876, 135.159590916366 34.6723953569943, 135.159390923613 34.6722579710995, 135.159360196593 34.6722369100855, 135.159080065244 34.6720472461245, 135.159471483036 34.6716321621472, 135.159873765491 34.6712124948982, 135.160233663317 34.6714592235083, 135.160961287546 34.6719420611579, 135.160683859522 34.6722301691897, 135.160602086223 34.6723050976507)) ^^http://www.opengis.net/ont/geosparql#wktLiteral