メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.696196154361 35.4289347198621, 136.69618546146 35.4303815249309, 136.693869297064 35.4303603890278, 136.6939107151 35.4293234439241, 136.694177605132 35.4293151897767, 136.695202771654 35.4293065817567, 136.695450390455 35.4292907845621, 136.695668241696 35.4292374099423, 136.695822872254 35.4291521337213, 136.695981131781 35.4290343723055, 136.696116215667 35.4288924385538, 136.69621650454 35.4287714246707, 136.696196154361 35.4289347198621)) ^^http://www.opengis.net/ont/geosparql#wktLiteral