メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.625103733972 35.3579456761398, 136.624027361649 35.3579350016406, 136.62400745764 35.3576396314758, 136.623773050545 35.3576707612831, 136.623748458905 35.3575110036794, 136.623777754403 35.3575071916695, 136.623767228623 35.3573779188181, 136.6238283531 35.3573705179919, 136.624106917842 35.357336839767, 136.625038298 35.3573559477693, 136.625103733972 35.3579456761398)) ^^http://www.opengis.net/ont/geosparql#wktLiteral