MAYBE
237.32/60.26	MAYBE
237.32/60.26	
237.32/60.26	Problem:
237.32/60.26	 a(l(x1)) -> l(a(x1))
237.32/60.26	 a(c(x1)) -> c(a(x1))
237.32/60.26	 c(a(r(x1))) -> r(a(x1))
237.32/60.26	 l(r(a(a(x1)))) -> a(a(l(c(c(c(r(x1)))))))
237.32/60.26	
237.32/60.26	Proof:
237.32/60.26	 Open
237.32/60.27	EOF