メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.849288681743 35.6991887261495, 139.850433546165 35.6995181057614, 139.850266231998 35.6997163591636, 139.849801416963 35.7002784054324, 139.849722223609 35.7003591514593, 139.849703811075 35.7003052163249, 139.848945609915 35.6996567062596, 139.848916594449 35.6996293187508, 139.848150914648 35.6989696748054, 139.848146381869 35.6988661268598, 139.848190368107 35.6988785482668, 139.849288681743 35.6991887261495)) ^^http://www.opengis.net/ont/geosparql#wktLiteral