YES
(ignored inputs)COMMENT Cops #647 - #721: generated ground TRSs; evenly distributed in the UNR/UNC/NFP/CR hierarchy submitted by: Bertram Felgenhauer
input TRS:
   [ c -> c,
     a -> f(h(h(f(a),f(f(c))),b)),
     c -> a,
     h(c,f(b)) -> c ]
TRS:
   [ c -> c,
     a -> f(h(h(f(a),f(f(c))),b)),
     c -> a,
     h(c,f(b)) -> c ]
Right-Reducible
problems/685.trs: Success(UNC)
(0 msec.)