( ( In ( all ( other mammals ) ) ) ( , ( ( the lungs ) ( ( are ( surrounded ( by ( ( two layers ) ( of ( ( a ( thin membrane ) ) ( called ( the ( pleural cavity ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT all) (JJ other) (NNS mammals))) (, ,) (NP (DT the) (NNS lungs)) (VP (VBP are) (VP (VBN surrounded) (PP (IN by) (NP (NP (CD two) (NNS layers)) (PP (IN of) (NP (NP (DT a) (JJ thin) (NN membrane)) (VP (VBN called) (NP (DT the) (JJ pleural) (NN cavity))))))))) (. .)))
In all other mammals, the lungs are surrounded by two layers of a thin membrane called the pleural cavity.
(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)))) (. .)))