メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> MULTIPOLYGON(((140.918482813805 37.792051516395, 140.91845119341 37.792454730011, 140.918205635769 37.7923858894768, 140.917702773972 37.7920454494371, 140.917801205093 37.7919405069309, 140.918064494747 37.7918450295234, 140.918482813805 37.792051516395)), ((140.924535050714 37.7935008406945, 140.924188298163 37.7933313054413, 140.924500998116 37.7928321531065, 140.92474176927 37.7927560169137, 140.924961441847 37.7925119787225, 140.925204691814 37.7926041946361, 140.924998819175 37.7928999120945, 140.924851110517 37.7931035844422, 140.924535050714 37.7935008406945))) ^^http://www.opengis.net/ont/geosparql#wktLiteral