查询本体时异常

QUERY=\" PREFIX table: <http://www.daml.org/2003/01/periodictable/PeriodicTable#> \\n\"+
            \"SELECT ?name ?symbol ?weight ?number \\n\"+
            \"FROM <http://www.daml.org/2003/01/periodictable/PeriodicTable.owl> \\n\" +
            \"WHERE \\n\" +
            \"{ \\n\"+
            \"?uranium table:name \\\"uranium\\\". \\n\"+
            \"?uranium table:atomicWeight ?uraniumWeight. \\n\"+
            \"?element table:name ?name. \\n\"+
            \"?element table:symbol ?symbol. \\n\" +
            \"?element table:atomicWeight ?weight. \\n\" +
            \"?element table:atomicNumber ?number. \\n\" +
            \"FILTER ?weight > ?uraniumWeight. \\n\" +
            \"} \\n\"+
            \"ORDER BY ASC[?weight] \";