MAYBE
237.51/60.26	MAYBE
237.51/60.26	
237.51/60.26	Problem:
237.51/60.26	 b(a(a(x1))) -> a(b(c(x1)))
237.51/60.26	 c(a(x1)) -> a(c(x1))
237.51/60.26	 b(c(a(x1))) -> a(b(c(x1)))
237.51/60.26	 c(b(x1)) -> b(a(x1))
237.51/60.26	 a(c(b(x1))) -> c(b(a(x1)))
237.51/60.26	
237.51/60.26	Proof:
237.51/60.26	 Open
237.51/60.26	EOF