メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.673678840085 34.8377897272287, 134.67368106643 34.8385582122823, 134.673681563694 34.8387305674124, 134.673281632088 34.8388566978269, 134.673233998187 34.8387553454875, 134.672880458511 34.8380526184655, 134.672677044105 34.8381177696639, 134.672366302395 34.83747696852, 134.672718352403 34.8373619621686, 134.673620208465 34.8370562416267, 134.67367667682 34.8370367861135, 134.673678840085 34.8377897272287)) ^^http://www.opengis.net/ont/geosparql#wktLiteral