( ( ( Document ( the reaction ) ) ( to ( each ( as ( ( positive or ) negative ) ) ) ) ) . )
(ROOT (S (VP (VB Document) (NP (DT the) (NN reaction)) (PP (TO to) (NP (DT each) (ADJP (RB as) (JJ positive) (CC or) (JJ negative))))) (. .)))
Document the reaction to each as positive or negative.
(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))) (. .)))