( Animals ( ( ( ( depend ( on ( trees ( for ( food ( , ( ( shelter and ) protection ) ) ) ) ) ) ) , ) ( while ( ( the trees ) ( depend ( on ( ( ( ( ( ( the animals ) , ) ( smaller plants ) ) , ) and ) ( microorganisms ( for nutrients ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Animals)) (VP (VBP depend) (PP (IN on) (NP (NP (NNS trees)) (PP (IN for) (NP (NN food) (, ,) (NN shelter) (CC and) (NN protection))))) (, ,) (SBAR (IN while) (S (NP (DT the) (NNS trees)) (VP (VBP depend) (PP (IN on) (NP (NP (DT the) (NNS animals)) (, ,) (NP (JJR smaller) (NNS plants)) (, ,) (CC and) (NP (NP (NNS microorganisms)) (PP (IN for) (NP (NNS nutrients)))))))))) (. .)))
Animals depend on trees for food, shelter and protection, while the trees depend on the animals, smaller plants, and microorganisms for nutrients.
(ROOT (S (NP (JJ Many) (NNS animals)) (VP (VBP depend) (PP (IN on) (NP (NP (NNS plants)) (PP (IN for) (NP (NN shelter)))))) (. .)))
Many animals depend on plants for shelter.