( ( ( ( The ( outer ( ( layer or ) epidermis ) ) ) , ) ( ( ( the ( middle ( ( layer or ) corium ) ) ) and ) ( the ( bottom ( ( layer or ) flesh ) ) ) ) ) . )
(ROOT (NP (NP (DT The) (JJ outer) (NN layer) (CC or) (NNS epidermis)) (, ,) (NP (NP (DT the) (JJ middle) (NN layer) (CC or) (NN corium)) (CC and) (NP (DT the) (JJ bottom) (NN layer) (CC or) (NN flesh))) (. .)))
The outer layer or epidermis, the middle layer or corium and the bottom layer or flesh.
(ROOT (S (NP (NNS Melanocytes)) (VP (VBP are) (VP (VBN located) (PP (IN in) (NP (NP (DT the) (JJ bottom) (NN layer)) (PP (IN of) (NP (DT the) (NNS epidermis))))))) (. .)))