メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.845561497843 35.3229740302403, 136.846113498756 35.3229802933122, 136.846582776665 35.3229422476038, 136.846560868897 35.323799683559, 136.846437997991 35.3245361423492, 136.846247547906 35.3247924044837, 136.846224406644 35.3247386791894, 136.845851612427 35.3244149268617, 136.845667581349 35.3242551338243, 136.844764307263 35.3234825485145, 136.844774975354 35.3229650927292, 136.845561497843 35.3229740302403)) ^^http://www.opengis.net/ont/geosparql#wktLiteral