メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.768882071334 35.4352869599095, 136.768677257261 35.4352671378227, 136.76849612511 35.4351995074636, 136.767289915247 35.4364850140567, 136.766217989144 35.4357782919675, 136.767178063258 35.434278584552, 136.767201877281 35.4338554773243, 136.76777746936 35.4338257067788, 136.767845377294 35.4337863883877, 136.768247022357 35.4337244287396, 136.76829729801 35.4339636314252, 136.768795123474 35.4339221583735, 136.76885508012 35.4348176677576, 136.768882071334 35.4352869599095)) ^^http://www.opengis.net/ont/geosparql#wktLiteral