MAYBE
TRS:
 {f(X) -> f(b()),
   b() -> a()}
 DP:
  Strict:
   {f#(X) -> f#(b()),
    f#(X) -> b#()}
  Weak:
  {f(X) -> f(b()),
    b() -> a()}
  EDG:
   {(f#(X) -> f#(b()), f#(X) -> b#())
    (f#(X) -> f#(b()), f#(X) -> f#(b()))}
   SCCS:
    Scc:
     {f#(X) -> f#(b())}
    SCC:
     Strict:
      {f#(X) -> f#(b())}
     Weak:
     {f(X) -> f(b()),
       b() -> a()}
     Fail