( ( How ( to ( address ( ( ( positive and ) negative ) reactions ) ) ) ) . )
(ROOT (FRAG (SBAR (WHADVP (WRB How)) (S (VP (TO to) (VP (VB address) (NP (ADJP (JJ positive) (CC and) (JJ negative)) (NNS reactions)))))) (. .)))
How to address positive and negative reactions.
(ROOT (S (S (VP (VBZ Is) (NP (NP (DT the) (NN heat)) (PP (IN of) (NP (NP (NN reaction)) (PP (IN for) (NP (DT an) (JJ endothermic) (NN reaction)))))))) (VP (VBZ is) (ADJP (JJ positive))) (. .)))