( ( ( ( ( Divide ( the class ) ) ( into ( seven groups ) ) ) and ) ( choose ( ( a recorder ) ( for each ) ) ) ) . )
(ROOT (S (VP (VP (VB Divide) (NP (DT the) (NN class)) (PP (IN into) (NP (CD seven) (NNS groups)))) (CC and) (VP (VB choose) (NP (NP (DT a) (NN recorder)) (PP (IN for) (NP (DT each)))))) (. .)))
Divide the class into seven groups and choose a recorder for each.
(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.