メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.400290113254 37.2108003483197, 140.399082199709 37.2100303182005, 140.398124643787 37.2094852059516, 140.396894117928 37.2080190086691, 140.396939234655 37.206926193025, 140.397461702583 37.2072150218712, 140.398670579964 37.207880450181, 140.399384366607 37.2082629744361, 140.400279860664 37.2100600754854, 140.400414719899 37.210695981792, 140.400290113254 37.2108003483197)) ^^http://www.opengis.net/ont/geosparql#wktLiteral