( It ( ( ( 's ( like ( a ( highway junction ) ) ) ) ( where ( ( ( the routes ) ( that take ) ) ( ( air ( to ( ( ( the lungs ) and ) food ) ) ) ( to ( ( the ( stomach intersect ) ) ( in ( ( ( a ( common chamber ) ) , ) ( the pharynx ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ 's) (PP (IN like) (NP (DT a) (NN highway) (NN junction))) (SBAR (WHADVP (WRB where)) (S (NP (NP (DT the) (NNS routes)) (SBAR (WHNP (WDT that)) (S (VP (VBP take))))) (VP (NN air) (PP (TO to) (NP (NP (DT the) (NNS lungs)) (CC and) (NP (NN food)))) (PP (TO to) (NP (NP (DT the) (NN stomach) (NN intersect)) (PP (IN in) (NP (NP (DT a) (JJ common) (NN chamber)) (, ,) (NP (DT the) (NN pharynx)))))))))) (. .)))
It's like a highway junction where the routes that take air to the lungs and food to the stomach intersect in a common chamber, the pharynx.
(ROOT (S (PP (IN In) (NP (DT the) (JJ human) (NN body))) (, ,) (NP (NP (DT the) (NN intersection)) (SBAR (WHADVP (WRB where)) (S (NP (NP (DT the) (NNS paths)) (PP (IN for) (NP (NN air) (CC and) (NN food)))) (VP (VBP cross))))) (VP (VBZ is) (VP (VBN called) (NP (NN pharynx)))) (. .)))