メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.72954026457 35.3818716695609, 136.729540418395 35.3818741624092, 136.729643658116 35.3834793281046, 136.725306124549 35.3836795702242, 136.724593902318 35.3832016380021, 136.72419267018 35.3829187670825, 136.723617065939 35.3825129529369, 136.722673799807 35.3818526911628, 136.722587365264 35.3817782919863, 136.722682103652 35.3817263886988, 136.724117116392 35.381655378662, 136.725987146648 35.3816021338681, 136.727033645034 35.3815461522001, 136.728631470518 35.3814812432189, 136.729513418199 35.3814368283948, 136.72954026457 35.3818716695609)) ^^http://www.opengis.net/ont/geosparql#wktLiteral