メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.916670078349 35.1805422439488, 136.91661740498 35.181116213718, 136.916548079726 35.1816940217979, 136.913707220366 35.1814971874663, 136.913765243433 35.1809256961208, 136.913831093115 35.1803611926972, 136.91529580375 35.1804506068025, 136.91560202805 35.1804692976955, 136.916140403706 35.1805060691286, 136.916670078349 35.1805422439488)) ^^http://www.opengis.net/ont/geosparql#wktLiteral