198.56/50.74	MAYBE
198.56/50.74	
198.56/50.74	Problem:
198.56/50.74	 b(b(b(a(x1)))) -> a(b(a(a(x1))))
198.56/50.74	 a(b(a(b(x1)))) -> b(b(a(b(x1))))
198.56/50.74	 b(b(a(a(x1)))) -> b(b(a(b(x1))))
198.56/50.74	 b(a(a(a(x1)))) -> a(a(b(a(x1))))
198.56/50.74	
198.56/50.74	Proof:
198.56/50.74	 Open
198.90/50.74	EOF