( ( Vibrating ( silicon gyroscopes ) ) ( ( can ( be ( divided ( into ( seven classes ) ) ) ) ) . ) )
(ROOT (S (NP (VBG Vibrating) (NN silicon) (NNS gyroscopes)) (VP (MD can) (VP (VB be) (VP (VBN divided) (PP (IN into) (NP (CD seven) (NNS classes)))))) (. .)))
Vibrating silicon gyroscopes can be divided into seven classes.
(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.