メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.273229180239 43.1108404149679, 141.27403231389 43.1115191111062, 141.27453014327 43.1119355492868, 141.274184719989 43.1121926790909, 141.273801268905 43.1124809202171, 141.273445282356 43.1127440768877, 141.273082558558 43.1130142062305, 141.272819494042 43.1132165457107, 141.272725065522 43.1132812146827, 141.272505146638 43.113444326367, 141.271838899146 43.1128799470878, 141.271025144753 43.1121626091833, 141.270673404327 43.1118378527974, 141.270236608052 43.1114593408487, 141.270227325408 43.1114515251668, 141.27045003219 43.1113186804508, 141.27083507173 43.1110765948975, 141.271235716708 43.1108309155033, 141.271635751025 43.1105806599054, 141.272063104013 43.1103264166485, 141.272411473458 43.110101247206, 141.273229180239 43.1108404149679)) ^^http://www.opengis.net/ont/geosparql#wktLiteral