_ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
h_ _ _ _ _ _ . t_ e f_ _ _ t a_ _ _ _ _ _ _ _ _ _ _ _ l e_ _ _ _ _ _ e of c_ _ _ _ _ _ _ s u_ _ _ e is f_ _ _ d in a_ _ _ _ _ t e_ _ _ t a_ _ _ _ d 4_ _ 0 b_ .
hi_ _ _ _ _ . the fi_ _ t ar_ _ _ _ _ _ _ _ _ _ _ l ev_ _ _ _ _ e of co_ _ _ _ _ _ s us_ _ e is fo_ _ d in an_ _ _ _ t eg_ _ t ar_ _ _ d 40_ 0 bc.