MAYBE (ignored inputs)COMMENT from experiments for [44] submitted by: Tsubasa Suzuki , Takahito Aoto , and Yoshihito Toyama input TRS: [ a -> h(a), a -> f(c), f(?x) -> h(g(?x)), h(?x) -> f(g(?x)) ] TRS: [ a -> h(a), a -> f(c), f(?x) -> h(g(?x)), h(?x) -> f(g(?x)) ] problems/251.trs: Failure(unknown UNC) (0 msec.)