( Energy ( ( ( ( flows ( through ( ( this ( food chain ) ) ( in ( a ( one-way stream ) ) ) ) ) ) , ) ( ( form ( primary producers ) ) ( to ( various consumers ) ) ) ) . ) )
(ROOT (S (NP (NNP Energy)) (VP (VBZ flows) (PP (IN through) (NP (NP (DT this) (NN food) (NN chain)) (PP (IN in) (NP (DT a) (JJ one-way) (NN stream))))) (, ,) (S (VP (VB form) (NP (JJ primary) (NNS producers)) (PP (TO to) (NP (JJ various) (NNS consumers)))))) (. .)))
Energy flows through this food chain in a one-way stream, form primary producers to various consumers.
(ROOT (S (NP (NNP Food) (NNS chains)) (VP (VBP carry) (NP (NN energy)) (PP (IN from) (NP (NP (NNS producers)) (PP (TO to) (NP (NNS consumers)))))) (. .)))