( So ( there ( ( was ( ( an element ) ( of ( feedback ( intensifying ( the brake ) ) ) ) ) ) . ) ) )
(ROOT (S (IN So) (NP (EX there)) (VP (VBD was) (NP (NP (DT an) (NN element)) (PP (IN of) (NP (NP (NN feedback)) (VP (VBG intensifying) (NP (DT the) (NN brake))))))) (. .)))
So there was an element of feedback intensifying the brake.
(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)))) (. .)))