( It ( ( ( ( consists ( of ( two ( main layers ) ) ) ) : ) ( ( ( ( the epidermis ) ( -LRB- ( ( top layer ) -RRB- ) ) ) and ) ( ( the dermis ) ( -LRB- ( ( inner layer ) -RRB- ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ consists) (PP (IN of) (NP (CD two) (JJ main) (NNS layers))) (: :) (NP (NP (NP (DT the) (NNS epidermis)) (PRN (-LRB- -LRB-) (NP (JJ top) (NN layer)) (-RRB- -RRB-))) (CC and) (NP (NP (DT the) (NNS dermis)) (PRN (-LRB- -LRB-) (NP (JJ inner) (NN layer)) (-RRB- -RRB-))))) (. .)))
It consists of two main layers: the epidermis (top layer) and the dermis (inner layer).
(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)))) (. .)))