These changes are related to new technology and foreign competition.
( ( These changes ) ( ( are ( related ( to ( ( ( new technology ) and ) ( foreign competition ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS changes)) (VP (VBP are) (ADJP (VBN related) (PP (TO to) (NP (NP (JJ new) (NN technology)) (CC and) (NP (JJ foreign) (NN competition)))))) (. .)))
They are trying to stay on top of their competitors.
( They ( ( are ( trying ( to ( stay ( on ( top ( of ( their competitors ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP are) (VP (VBG trying) (S (VP (TO to) (VP (VB stay) (PP (IN on) (NP (NP (NN top)) (PP (IN of) (NP (PRP$ their) (NNS competitors)))))))))) (. .)))