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