( ( ( ( The ( different ( configuration elements ) ) ) and ) ( their defaults ) ) ( explained . ) )
(ROOT (S (NP (NP (DT The) (JJ different) (NN configuration) (NNS elements)) (CC and) (NP (PRP$ their) (NNS defaults))) (VP (VBD explained)) (. .)))
The different configuration elements and their defaults explained.
(ROOT (S (NP (NP (DT The) (JJ chemical) (NN behavior)) (PP (IN of) (NP (NNS elements)))) (VP (MD can) (ADVP (RB largely)) (VP (VB be) (VP (VBN explained) (PP (IN by) (NP (NN electron) (NNS configurations)))))) (. .)))