( ( Elastic properties ) ( of ( skin ( -LRB- ( ( ( epidermis and ) dermis ) -RRB- ) ) ) ) )
(ROOT (NP (NP (JJ Elastic) (NNS properties)) (PP (IN of) (NP (NP (NN skin)) (PRN (-LRB- -LRB-) (NP (NP (NNS epidermis)) (CC and) (NP (NNS dermis))) (-RRB- -RRB-))))))
Elastic properties of skin (epidermis and dermis)
(ROOT (S (NP (JJS Most) (NN skin) (NNS structures)) (VP (VB originate) (PP (IN in) (NP (DT the) (NNS dermis)))) (. .)))