( ( The feedback ) ( ( was positive ) ; ) )
(ROOT (S (NP (DT The) (NN feedback)) (VP (VBD was) (ADJP (JJ positive))) (: ;)))
The feedback was positive;
(ROOT (S (NP (JJ Positive) (NN feedback)) (VP (VP (VBZ intensifies) (NP (NP (DT a) (NN change)) (PP (IN in) (NP (NP (DT the) (NN body) (POS 's)) (JJ physiological) (NN condition))))) (CONJP (RB rather) (IN than)) (VP (VBG reversing) (NP (PRP it)))) (. .)))