メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.928901756501 35.1080984057215, 136.92768343484 35.1080968388244, 136.926522731558 35.1080927685253, 136.92652336839 35.107765428744, 136.926800366181 35.1077664027858, 136.927686808802 35.1077695042089, 136.928910514169 35.107759742903, 136.928901756501 35.1080984057215)) ^^http://www.opengis.net/ont/geosparql#wktLiteral