MAYBE (ignored inputs)COMMENT [111] p. 29 ( GCR & ~CR & ~GSCR ) input TRS: [ a -> b, b -> f(a,a), f(?x,a) -> b ] TRS: [ a -> b, b -> f(a,a), f(?x,a) -> b ] unknown UNC Completion (Development Closed) problems/508.trs: Failure(unknown UNC) (0 msec.)