メタデータ名 indicator-M2501
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.043986522403 42.9115898566389, 143.043971675932 42.9115886936379, 143.043623612238 42.9115647273697, 143.042962008292 42.9115156392751, 143.043119977365 42.9103781847434, 143.044145047619 42.9104412154686, 143.044058173972 42.9110708025713, 143.043986522403 42.9115898566389)) ^^http://www.opengis.net/ont/geosparql#wktLiteral