メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.17135261419 34.6652337077655, 135.170082123465 34.6652965475708, 135.169568187384 34.6653247130869, 135.169242238953 34.6653425755211, 135.168765352892 34.6653687069699, 135.168710179488 34.6650355362877, 135.169912207383 34.6649461372395, 135.170040333474 34.6649384943799, 135.171288681038 34.6648442554688, 135.17135261419 34.6652337077655)) ^^http://www.opengis.net/ont/geosparql#wktLiteral