( ( Secondary ( alcohols ( Secondary alcohols ) ) ) ( ( are ( oxidized ( to ( give ketones ) ) ) ) . ) )
(ROOT (S (NP (JJ Secondary) (JJ alcohols) (JJ Secondary) (NNS alcohols)) (VP (VBP are) (VP (VBN oxidized) (S (VP (TO to) (VP (VB give) (NP (NNS ketones))))))) (. .)))
Secondary alcohols Secondary alcohols are oxidized to give ketones .
(ROOT (S (NP (JJ Secondary) (NN alcohol)) (VP (VBZ forms) (NP (DT a) (NN ketone)) (SBAR (WHADVP (WRB when)) (S (VP (VBD oxidized))))) (. .)))