proves that even in sorrow you can find humor 
(ROOT (S (VP (VBZ proves) (SBAR (IN that) (S (PP (ADVP (RB even)) (IN in) (NP (NN sorrow))) (NP (PRP you)) (VP (MD can) (VP (VB find) (NP (NN humor)))))))))
(ROOT (S (VP (VBZ ) (SBAR (IN ) (S (PP (ADVP (RB )) (IN ) (NP (NN ))) (NP (PRP )) (VP (MD ) (VP (VB ) (NP (NN )))))))))