メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.413293501769 43.7788877181217, 142.413922572577 43.7786679508401, 142.414421607635 43.7784983290653, 142.414760685489 43.7797702240111, 142.412573671394 43.7805275764458, 142.411195679609 43.7796389407103, 142.411053500538 43.7796862016433, 142.410241589637 43.7791647974668, 142.410801966597 43.7787077691572, 142.411179736791 43.7783773791431, 142.41162798836 43.7780177938234, 142.412074255667 43.7776661207208, 142.412550705879 43.7779700898504, 142.413023738239 43.7782561285638, 142.413202750888 43.7783760927508, 142.413293501769 43.7788877181217)) ^^http://www.opengis.net/ont/geosparql#wktLiteral