a story that is so far-fetched it would be impossible to believe if it were n't true 
(ROOT (NP (NP (DT a) (NN story)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (ADJP (ADJP (RB so) (RB far) (HYPH -) (VBN fetched)) (SBAR (S (NP (NP (PRP it))) (VP (MD would) (VP (VB be) (ADJP (JJ impossible)) (S (VP (TO to) (VP (VB believe)))) (SBAR (IN if) (S (NP (PRP it)) (VP (VBD were) (RB n't) (ADJP (JJ true)))))))))))))))
(ROOT (NP (NP (DT ) (NN )) (SBAR (WHNP (WDT )) (S (VP (VBZ ) (ADJP (ADJP (RB ) (RB ) (HYPH ) (VBN )) (SBAR (S (NP (NP (PRP ))) (VP (MD ) (VP (VB ) (ADJP (JJ )) (S (VP (TO ) (VP (VB )))) (SBAR (IN ) (S (NP (PRP )) (VP (VBD ) (RB ) (ADJP (JJ )))))))))))))))