_ _ _ _ _ _ _ , _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ , _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ (_ _ _ _ _ _ _ _ _ _ _ ).
f_ _ _ _ _ _ , b_ _ _ _ _ _ s c_ n be u_ _ d to r_ _ _ r to a p_ _ _ _ _ _ _ _ r a_ _ a of e_ _ _ _ _ _ c a_ _ _ _ _ _ _ , s_ _ h as t_ e "_ _ _ _ _ d b_ _ _ _ _ _ _ " or t_ e "_ _ _ _ _ _ _ r b_ _ _ _ _ _ _ " (_ _ e i_ _ _ _ _ _ _ ).
fi_ _ _ _ _ , bu_ _ _ _ _ s can be us_ d to re_ _ r to a pa_ _ _ _ _ _ _ r ar_ a of ec_ _ _ _ _ c ac_ _ _ _ _ _ , su_ h as the "r_ _ _ _ d bu_ _ _ _ _ _ " or the "c_ _ _ _ _ _ r bu_ _ _ _ _ _ " (s_ e in_ _ _ _ _ _ ).