recognize any of the signposts , as if discovering a way through to the bitter end 
(ROOT (S (VP (VB recognize) (NP (NP (DT any)) (PP (IN of) (NP (DT the) (NNS signposts)))) (, ,) (SBAR (IN as) (IN if) (S (VP (VBG discovering) (NP (NP (DT a) (NN way)) (PP (IN through) (PP (IN to) (NP (DT the) (JJ bitter) (NN end)))))))))))
(ROOT (S (VP (VB ) (NP (NP (DT )) (PP (IN ) (NP (DT ) (NNS )))) (, ) (SBAR (IN ) (IN ) (S (VP (VBG ) (NP (NP (DT ) (NN )) (PP (IN ) (PP (IN ) (NP (DT ) (JJ ) (NN )))))))))))