the jokes are telegraphed so far in advance they must have been lost in the mail . 
(ROOT (S (NP (DT the) (NNS jokes)) (VP (VBP are) (VP (VBN telegraphed) (ADVP (ADVP (ADVP (RB so) (RB far)) (PP (IN in) (NP (NN advance)))) (SBAR (S (NP (PRP they)) (VP (MD must) (VP (VB have) (VP (VBN been) (VP (VBN lost) (PP (IN in) (NP (DT the) (NN mail)))))))))))) (. .)))
(ROOT (S (NP (DT ) (NNS )) (VP (VBP ) (VP (VBN ) (ADVP (ADVP (ADVP (RB ) (RB )) (PP (IN ) (NP (NN )))) (SBAR (S (NP (PRP )) (VP (MD ) (VP (VB ) (VP (VBN ) (VP (VBN ) (PP (IN ) (NP (DT ) (NN )))))))))))) (. )))