( ( The class ) ( ( is ( divided ( into ( seven sections ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN class)) (VP (VBZ is) (VP (VBN divided) (PP (IN into) (NP (CD seven) (NNS sections))))) (. .)))
The class is divided into seven sections.
(ROOT (S (NP (NNS Mollusks)) (VP (MD can) (VP (VB be) (VP (VBN divided) (PP (IN into) (NP (CD seven) (NNS classes)))))) (. .)))
Mollusks can be divided into seven classes.