( ( The streptococci ) ( ( reside ( in ( ( ( ( ( ( the mouth ) , ) ( the ( respiratory tract ) ) ) , ) and ) ( the ( gastrointestinal tract ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS streptococci)) (VP (VB reside) (PP (IN in) (NP (NP (DT the) (NN mouth)) (, ,) (NP (DT the) (JJ respiratory) (NN tract)) (, ,) (CC and) (NP (DT the) (JJ gastrointestinal) (NN tract))))) (. .)))
The streptococci reside in the mouth, the respiratory tract, and the gastrointestinal tract.
(ROOT (S (NP (DT The) (NN term) (NN gastrointestinal) (NN tract)) (VP (VBZ describes) (NP (NP (DT the) (JJ long) (NN tube)) (SBAR (WHNP (WDT that)) (S (VP (VBZ connects) (NP (DT the) (NN mouth)) (PP (TO to) (NP (DT the) (NNS anus)))))))) (. .)))