( ( During summer ) ( ( heat cows ) ( ( will ( increase ( their ( water intake ) ) ) ) . ) ) )
(ROOT (S (PP (IN During) (NP (NN summer))) (NP (NN heat) (NNS cows)) (VP (MD will) (VP (VB increase) (NP (PRP$ their) (NN water) (NN intake)))) (. .)))
During summer heat cows will increase their water intake.
(ROOT (S (NP (NP (DT A) (-LRB- -LRB-) (NN n) (-RRB- -RRB-) (NN increase)) (PP (IN in) (NP (NN length)))) (VP (VBZ happens) (PP (TO to) (NP (NN metal) (NN railroad) (NNS tracks))) (PP (IN during) (NP (NP (DT the) (NN heat)) (PP (IN of) (NP (DT a) (NN summer) (NN day)))))) (. .)))