Some bugs are hell to track down.
( ( Some bugs ) ( ( are ( hell ( to ( track down ) ) ) ) . ) )
(ROOT (S (NP (DT Some) (NNS bugs)) (VP (VBP are) (ADJP (JJ hell) (S (VP (TO to) (VP (VB track) (PRT (RP down))))))) (. .)))
It takes hours to find some bugs.
( It ( ( takes ( hours ( to ( find ( some bugs ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ takes) (S (NP (NNS hours)) (VP (TO to) (VP (VB find) (NP (DT some) (NNS bugs)))))) (. .)))