MAYBE
123.14/55.36	MAYBE
123.14/55.36	
123.14/55.36	Problem:
123.14/55.36	 b(a(a(x1))) -> a(x1)
123.14/55.36	 a(a(a(x1))) -> b(b(b(x1)))
123.14/55.36	 b(b(x1)) -> a(b(a(x1)))
123.14/55.36	
123.14/55.36	Proof:
123.14/55.36	 Open
123.14/55.36	EOF