( ( Works ( in ( ( fresh or ) ( salt water ) ) ) ) . )
(ROOT (NP (NP (NNP Works)) (PP (IN in) (NP (NP (JJ fresh)) (CC or) (NP (NN salt) (NN water)))) (. .)))
Works in fresh or salt water.
(ROOT (S (NP (JJ Fresh) (NN water) (NNS biomes)) (VP (VBP are) (VP (VBN defined) (PP (IN by) (NP (JJ low) (NN salt) (NN concentration))))) (. .)))