MAYBE

Problem:
 b(a(a(a(b(a(a(x1))))))) -> a(a(a(b(b(a(a(a(b(x1)))))))))

Proof:
 Complexity Transformation Processor:
  strict:
   b(a(a(a(b(a(a(x1))))))) -> a(a(a(b(b(a(a(a(b(x1)))))))))
  weak:
   
  Open