( ( The ( skin dermis ) ) ( ( looks irregular ) . ) )
(ROOT (S (NP (DT The) (NN skin) (NNS dermis)) (VP (VBZ looks) (NP (NN irregular))) (. .)))
The skin dermis looks irregular.
(ROOT (S (NP (JJS Most) (NN skin) (NNS structures)) (VP (VB originate) (PP (IN in) (NP (DT the) (NNS dermis)))) (. .)))