メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.896461479232 43.0175338164379, 142.8958965305 43.0180146067508, 142.895755934469 43.0181342559178, 142.894734263658 43.0174981741084, 142.894674642229 43.0174610933799, 142.894525565786 43.0175857110723, 142.894430363236 43.017665296785, 142.89396305664 43.0173846329101, 142.894061609399 43.0172999659488, 142.89489464223 43.0165309436355, 142.895377196298 43.0168308582226, 142.895994528635 43.017241976733, 142.896461479232 43.0175338164379)) ^^http://www.opengis.net/ont/geosparql#wktLiteral