( ( Like ( human skin ) ) ( , ( Graftskin ( ( has ( ( ( ( ( two ( primary layers ) ) , ) ( a dermis ) ) and ) ( an epidermis ) ) ) . ) ) ) )
(ROOT (S (PP (IN Like) (NP (JJ human) (NN skin))) (, ,) (NP (NNP Graftskin)) (VP (VBZ has) (NP (NP (CD two) (JJ primary) (NNS layers)) (, ,) (NP (DT a) (NNS dermis)) (CC and) (NP (DT an) (NNS epidermis)))) (. .)))
Like human skin, Graftskin has two primary layers, a dermis and an epidermis.
(ROOT (S (NP (DT The) (NN skin)) (VP (VBZ is) (VP (VBN made) (PP (IN of) (NP (NP (CD two) (NNS layers)) (: :) (NP (NNS epidermis) (CC and) (NNS dermis)))))) (. .)))