knows how a daily grind can kill love 
(ROOT (S (VP (VBZ knows) (SBAR (WHADVP (WRB how)) (S (NP (DT a) (JJ daily) (NN grind)) (VP (MD can) (VP (VB kill) (NP (NN love)))))))))
(ROOT (S (VP (VBZ ) (SBAR (WHADVP (WRB )) (S (NP (DT ) (JJ ) (NN )) (VP (MD ) (VP (VB ) (NP (NN )))))))))