(RULES
  h(f(f(f(h(c,h(b,c))))),h(f(f(b)),b)) -> f(h(b,f(a)))
  f(c) -> b
)
(COMMENT
Cops #647 - #721: generated ground TRSs; evenly distributed in the
UNR/UNC/NFP/CR hierarchy
submitted by: Bertram Felgenhauer
)