Both plants are capable of making the same set of products.
( ( Both plants ) ( ( are ( capable ( of ( making ( ( the ( same set ) ) ( of products ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT Both) (NNS plants)) (VP (VBP are) (ADJP (JJ capable) (PP (IN of) (S (VP (VBG making) (NP (NP (DT the) (JJ same) (NN set)) (PP (IN of) (NP (NNS products))))))))) (. .)))
Only one of the two plants is able to make the same product set.
( ( ( Only one ) ( of ( the ( two plants ) ) ) ) ( ( is ( able ( to ( make ( the ( same ( product set ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (RB Only) (CD one)) (PP (IN of) (NP (DT the) (CD two) (NNS plants)))) (VP (VBZ is) (ADJP (JJ able) (S (VP (TO to) (VP (VB make) (NP (DT the) (JJ same) (NN product) (NN set))))))) (. .)))