メタデータ名 C21201-19790101
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.8687500 37.8416667, 140.8750000 37.8416667, 140.8750000 37.8458334, 140.8687500 37.8458334, 140.8687500 37.8416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral