メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.786013488064 35.3217475969723, 136.78599253141 35.3224190356872, 136.785449264449 35.3224121093687, 136.785451629603 35.321905265946, 136.785931462921 35.3219067809434, 136.785932895809 35.3215993094972, 136.785503757534 35.3215979546223, 136.785504647971 35.3214071047521, 136.786013262192 35.3214087104025, 136.786013488064 35.3217475969723)) ^^http://www.opengis.net/ont/geosparql#wktLiteral