( ( Neer 5 ) ( ( ( divided ( impingement syndrome ) ) ( into ( three stages ) ) ) . ) )
(ROOT (S (NP (NNP Neer) (CD 5)) (VP (VBD divided) (NP (JJ impingement) (NN syndrome)) (PP (IN into) (NP (CD three) (NNS stages)))) (. .)))
Neer 5 divided impingement syndrome into three stages.
(ROOT (S (NP (NNP Adulthood)) (VP (VBZ is) (VP (VBN divided) (PP (IN into) (NP (CD three) (NNS stages))))) (. .)))