is so far-fetched it would be impossible to believe if it were n't true 
(ROOT (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 (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 )))))))))))))