( Stomata ( are ( found ( in ( ( the epidermis ) ( of ( ( the ( aerial ( plant parts ) ) ) ( for ( gas ( exchange a. ) ) ) ) ) ) ) ) ) )
(ROOT (S (NP (NNP Stomata)) (VP (VBP are) (VP (VBN found) (PP (IN in) (NP (NP (DT the) (NNS epidermis)) (PP (IN of) (NP (NP (DT the) (JJ aerial) (NN plant) (NNS parts)) (PP (IN for) (NP (NN gas) (NN exchange) (NN a.)))))))))))
Stomata are found in the epidermis of the aerial plant parts for gas exchange a.
(ROOT (S (NP (NP (DT The) (NNS epidermis)) (PP (IN of) (NP (DT a) (NN leaf)))) (VP (VBZ contains) (NP (NP (NNS openings)) (VP (VBN known) (PP (IN as) (NP (NP (NN stomata)) (, ,) (SBAR (WHPP (IN through) (WHNP (WDT which))) (S (NP (NP (DT the) (NN exchange)) (PP (IN of) (NP (NNS gases)))) (VP (VBZ takes) (NP (NN place)))))))))) (. .)))