( ( The veil ) ( ( consists ( of ( two layers ) ) ) . ) )
(ROOT (S (NP (DT The) (NN veil)) (VP (VBZ consists) (PP (IN of) (NP (CD two) (NNS layers)))) (. .)))
The veil consists of two layers.
(ROOT (S (NP (NP (DT The) (NN pleura)) (SBAR (WHNP (WDT that)) (S (VP (VBZ surrounds) (NP (DT the) (NNS lungs)))))) (VP (VBZ consists) (PP (IN of) (NP (CD two) (NNS layers)))) (. .)))