メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.869217529048 35.1223574999483, 136.869877112925 35.1223495644154, 136.869828510843 35.1234195544651, 136.869191590195 35.1234101547595, 136.869138830533 35.1233930510427, 136.86848113307 35.1233764527187, 136.868423597666 35.1233750002803, 136.868433551524 35.1229603590259, 136.86844751471 35.1225681927798, 136.868467150661 35.1223011878603, 136.869173802731 35.1223256294203, 136.869217529048 35.1223574999483)) ^^http://www.opengis.net/ont/geosparql#wktLiteral