( ( ( Every ( living thing ) ) ( in ( a ( food chain ) ) ) ) ( ( ( is either ) ( ( ( a producer ) or ) ( a consumer ) ) ) . ) )
(ROOT (S (NP (NP (DT Every) (VBG living) (NN thing)) (PP (IN in) (NP (DT a) (NN food) (NN chain)))) (VP (VBZ is) (ADVP (RB either)) (NP (NP (DT a) (NN producer)) (CC or) (NP (DT a) (NN consumer)))) (. .)))
Every         living thing in a food chain is either a producer or a consumer.
(ROOT (S (NP (NNS Consumers)) (VP (VBP are) (NP (NP (NNS members)) (PP (IN of) (NP (DT an) (NN ecosystem) (NN food) (NN chain))) (SBAR (WHNP (WDT that)) (S (VP (VBP take) (PP (IN in) (NP (NN food))) (PP (IN by) (S (VP (VBG eating) (NP (NP (NNS producers)) (CC or) (NP (JJ other) (VBG living) (NNS things))))))))))) (. .)))