to be a breath of fresh air 
(ROOT (S (VP (TO to) (VP (VB be) (NP (NP (DT a) (NN breath)) (PP (IN of) (NP (JJ fresh) (NN air))))))))
(ROOT (S (VP (TO ) (VP (VB ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NN ))))))))