197.21/50.46	MAYBE
197.21/50.46	
197.21/50.46	Problem:
197.21/50.46	 a(c(b(a(b(a(c(b(a(x1))))))))) -> a(b(a(c(b(a(c(b(a(b(a(c(x1))))))))))))
197.21/50.46	
197.21/50.46	Proof:
197.21/50.46	 Open
197.21/50.46	EOF