MAYBE
241.72/60.26	MAYBE
241.72/60.26	
241.72/60.26	Problem:
241.72/60.26	 b(a(a(x1))) -> a(b(c(x1)))
241.72/60.26	 c(a(x1)) -> a(c(x1))
241.72/60.26	 b(c(a(x1))) -> a(b(c(x1)))
241.72/60.26	 c(b(x1)) -> d(x1)
241.72/60.26	 a(d(x1)) -> d(a(x1))
241.72/60.26	 d(x1) -> b(a(x1))
241.72/60.26	 L(a(a(x1))) -> L(a(b(c(x1))))
241.72/60.26	 c(R(x1)) -> c(b(R(x1)))
241.72/60.26	
241.72/60.26	Proof:
241.72/60.26	 Open
241.72/60.26	EOF