メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.368830371585 43.7322390962937, 142.369339383461 43.7323918462212, 142.369864670241 43.7325529970572, 142.370287690684 43.7326738368719, 142.37005159524 43.7330985386644, 142.369808498186 43.7335081114382, 142.369410494831 43.7342032217544, 142.368975710679 43.7340833591753, 142.368472023571 43.7339325003935, 142.368455673867 43.7339279295704, 142.36796525528 43.7337854768451, 142.367943582585 43.7337794865907, 142.367427758654 43.7336369163567, 142.36785611591 43.7329340808683, 142.368337637665 43.7320913901359, 142.368452689465 43.7321227212969, 142.368830371585 43.7322390962937)) ^^http://www.opengis.net/ont/geosparql#wktLiteral