_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ .
it is a f_ _ m of a_ _ _ _ _ d s_ _ _ _ _ _ _ y w_ _ _ h c_ _ _ _ _ _ _ _ _ _ s on u_ _ _ _ _ _ _ _ _ _ _ g t_ e b_ _ _ _ _ _ _ _ _ , w_ _ _ s a_ d p_ _ _ _ _ _ _ _ _ _ , of c_ _ _ _ _ _ _ s in a m_ _ _ _ _ _ _ _ _ _ d e_ _ _ _ _ _ .
it is a fo_ m of ap_ _ _ _ d so_ _ _ _ _ _ y wh_ _ h co_ _ _ _ _ _ _ _ _ s on un_ _ _ _ _ _ _ _ _ _ g the be_ _ _ _ _ _ _ _ , wh_ _ s and pr_ _ _ _ _ _ _ _ _ , of co_ _ _ _ _ _ s in a ma_ _ _ _ _ _ _ _ _ d ec_ _ _ _ _ .