メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.739942011819 35.3333725504443, 136.737840447628 35.3337355326319, 136.736888256983 35.3339070407437, 136.736250720322 35.3332190379193, 136.73762371249 35.3329588021077, 136.73826425547 35.3328281639578, 136.738316261452 35.3328496866922, 136.739093532503 35.3331198346302, 136.739942011819 35.3333725504443)) ^^http://www.opengis.net/ont/geosparql#wktLiteral