( ( The ( academic day ) ) ( ( is ( divided ( into ( seven ( class periods ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ academic) (NN day)) (VP (VBZ is) (VP (VBN divided) (PP (IN into) (NP (CD seven) (NN class) (NNS periods))))) (. .)))
The academic day is divided into seven class periods.
(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.