( ( Seven ( of ( the ( 9 ( class rooms ) ) ) ) ) ( ( have ( dividers ( that ( can ( allow ( for ( larger ( meeting areas ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD Seven)) (PP (IN of) (NP (DT the) (CD 9) (NN class) (NNS rooms)))) (VP (VBP have) (NP (NP (NNS dividers)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB allow) (PP (IN for) (NP (JJR larger) (NN meeting) (NNS areas))))))))) (. .)))
Seven of the 9 class rooms have dividers that can allow for larger meeting areas.
(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.