( ( ( Animals , ) ( including humans ) ) ( ( release ( chemicals ( in ( tears ( , ( ( saliva and ) perspiration ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Animals)) (, ,) (PP (VBG including) (NP (NNS humans)))) (VP (VBP release) (NP (NP (NNS chemicals)) (PP (IN in) (NP (NNS tears) (, ,) (NN saliva) (CC and) (NN perspiration))))) (. .)))
Animals, including humans release chemicals in tears, saliva and perspiration.
(ROOT (S (NP (NNP Human) (NNP lysozyme)) (VP (VBZ is) (NP (NP (DT an) (JJ antibacterial) (NN protein)) (VP (VBN found) (PP (IN in) (NP (NNS tears) (CC and) (NN saliva)))))) (. .)))