メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.753074181115 35.3766530806606, 136.75219178544 35.3766896864462, 136.752258919011 35.3777350571262, 136.750962553449 35.3777960262179, 136.750424687972 35.3778217387235, 136.747441223689 35.3779646809029, 136.747292531951 35.3758412538364, 136.750266438028 35.3757128332538, 136.752131067227 35.3756253937166, 136.752822296611 35.3755932825408, 136.753074181115 35.3766530806606)) ^^http://www.opengis.net/ont/geosparql#wktLiteral