Research and development is composed of
( ( ( Research and ) development ) ( is ( composed of ) ) )
(ROOT (S (NP (NP (NNP Research)) (CC and) (NP (NN development))) (VP (VBZ is) (VP (VBN composed) (PP (IN of))))))
Research and development often occurs in scientific companies.
( ( ( Research and ) development ) ( often ( ( occurs ( in ( scientific companies ) ) ) . ) ) )
(ROOT (S (NP (NP (NNP Research)) (CC and) (NP (NN development))) (ADVP (RB often)) (VP (VBZ occurs) (PP (IN in) (NP (JJ scientific) (NNS companies)))) (. .)))