メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.362684390844 43.7363093788725, 142.362636220847 43.736394092243, 142.362607814163 43.7364440488135, 142.362486213835 43.7366564169958, 142.362006345982 43.7374944540277, 142.36175230858 43.7374239781964, 142.361711663117 43.7374898209641, 142.360964029867 43.7372843524634, 142.360356457129 43.7371173672428, 142.36056227401 43.7367691292328, 142.357709601806 43.7358526572951, 142.359053723759 43.734912170969, 142.359822123947 43.7342624572401, 142.36326816968 43.7352825844741, 142.362684390844 43.7363093788725)) ^^http://www.opengis.net/ont/geosparql#wktLiteral