( ( The tower ) ( ( is ( in ( ( three stages ) ( divided ( by ( string courses ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN tower)) (VP (VBZ is) (PP (IN in) (NP (NP (CD three) (NNS stages)) (VP (VBN divided) (PP (IN by) (NP (NN string) (NNS courses))))))) (. .)))
The tower is in three stages divided by string courses.
(ROOT (S (NP (NNP Adulthood)) (VP (VBZ is) (VP (VBN divided) (PP (IN into) (NP (CD three) (NNS stages))))) (. .)))