メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.347575675665 43.01488253629, 141.348362418141 43.0149165871292, 141.348271275777 43.0155387880456, 141.348257549526 43.0156384797289, 141.34820909936 43.0160218222806, 141.34819581958 43.0161499297142, 141.348125320769 43.0166121506066, 141.347592531262 43.0165658228892, 141.346652847331 43.0164959564785, 141.34665443555 43.0163875891013, 141.346722586221 43.01594251177, 141.346786915397 43.015470326998, 141.346765860436 43.015226184235, 141.346744729784 43.0151312112537, 141.346687743508 43.0148146249279, 141.346853802735 43.01482339111, 141.347575675665 43.01488253629)) ^^http://www.opengis.net/ont/geosparql#wktLiteral