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