MAYBE
TRS:
 {f(x, y, f(z, u, v)) -> f(f(x, y, z), u, f(x, y, v))}
 DP:
  Strict:
   {f#(x, y, f(z, u, v)) -> f#(x, y, z),
    f#(x, y, f(z, u, v)) -> f#(x, y, v),
    f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v))}
  Weak:
  {f(x, y, f(z, u, v)) -> f(f(x, y, z), u, f(x, y, v))}
  EDG:
   {(f#(x, y, f(z, u, v)) -> f#(x, y, z), f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v)))
    (f#(x, y, f(z, u, v)) -> f#(x, y, z), f#(x, y, f(z, u, v)) -> f#(x, y, v))
    (f#(x, y, f(z, u, v)) -> f#(x, y, z), f#(x, y, f(z, u, v)) -> f#(x, y, z))
    (f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v)), f#(x, y, f(z, u, v)) -> f#(x, y, z))
    (f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v)), f#(x, y, f(z, u, v)) -> f#(x, y, v))
    (f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v)), f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v)))
    (f#(x, y, f(z, u, v)) -> f#(x, y, v), f#(x, y, f(z, u, v)) -> f#(x, y, z))
    (f#(x, y, f(z, u, v)) -> f#(x, y, v), f#(x, y, f(z, u, v)) -> f#(x, y, v))
    (f#(x, y, f(z, u, v)) -> f#(x, y, v), f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v)))}
   SCCS:
    Scc:
     {f#(x, y, f(z, u, v)) -> f#(x, y, z),
      f#(x, y, f(z, u, v)) -> f#(x, y, v),
      f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v))}
    SCC:
     Strict:
      {f#(x, y, f(z, u, v)) -> f#(x, y, z),
       f#(x, y, f(z, u, v)) -> f#(x, y, v),
       f#(x, y, f(z, u, v)) -> f#(f(x, y, z), u, f(x, y, v))}
     Weak:
     {f(x, y, f(z, u, v)) -> f(f(x, y, z), u, f(x, y, v))}
     Fail