メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.36611133505 43.0991626138277, 141.366552952909 43.0992193288414, 141.367138932993 43.0992881965658, 141.366891436645 43.1003470181671, 141.366748381796 43.1003307247549, 141.366386246982 43.100285595716, 141.366310149173 43.1002782573617, 141.36585114299 43.1002221811058, 141.365279021762 43.1001568612714, 141.365533551082 43.0990912735339, 141.36611133505 43.0991626138277)) ^^http://www.opengis.net/ont/geosparql#wktLiteral