MAYBE (ignored inputs)COMMENT [111] p. 29 ( GUNC & ~UNC & ~GNFP ) input TRS: [ a -> a, f(b,?x) -> b, f(?x,a) -> a ] TRS: [ a -> a, f(b,?x) -> b, f(?x,a) -> a ] unknown Right-Reducible problems/510.trs: Failure(unknown UNC) (0 msec.)