メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.927271210665 35.2051350211758, 136.926883433683 35.205477707641, 136.926534376951 35.2058041311743, 136.926168280104 35.2061469294671, 136.9248809701 35.2052091730695, 136.925258901377 35.2048613326705, 136.925603191125 35.2045444096441, 136.925613386498 35.2045349930065, 136.925988906129 35.2041737649947, 136.926482659515 35.2045439207112, 136.926940739286 35.2048873121844, 136.927271210665 35.2051350211758)) ^^http://www.opengis.net/ont/geosparql#wktLiteral