メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.994371168953 34.9023957822435, 136.992749659859 34.9028276630128, 136.992738780183 34.9027373585435, 136.992739148792 34.9025628374188, 136.992740747033 34.902150130064, 136.992723178655 34.9019581873338, 136.992893245731 34.901901594872, 136.993905718746 34.9015579404087, 136.994638764932 34.9013160033489, 136.995226253338 34.90118386542, 136.99527345988 34.9012312598046, 136.995575193728 34.9015909388796, 136.99589544618 34.9019825482518, 136.994371168953 34.9023957822435)) ^^http://www.opengis.net/ont/geosparql#wktLiteral