_ _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
a_ _ _ _ _ _ _ _ _ _ _ _ , t_ e t_ _ _ e of c_ _ _ _ _ _ _ _ n is s_ _ _ _ _ _ _ s u_ _ d if t_ e i_ _ _ _ _ _ _ t is f_ _ _ _ _ .
al_ _ _ _ _ _ _ _ _ _ _ , the ti_ _ e of ch_ _ _ _ _ _ _ n is so_ _ _ _ _ _ s us_ d if the in_ _ _ _ _ _ t is fe_ _ _ _ .