( ( For ( both ( vinyl ( chloride ( and ( vinyl bromide ) ) ) ) ) ) ( , ( ( ( the ( covalent binding ) ) ( of ( ( these compounds ) ( to DNA ) ) ) ) ( ( forms ( the ( respective ( etheno adducts ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN For) (NP (DT both) (NN vinyl) (NN chloride) (CC and) (NN vinyl) (NN bromide))) (, ,) (NP (NP (DT the) (JJ covalent) (VBG binding)) (PP (IN of) (NP (NP (DT these) (NNS compounds)) (PP (TO to) (NP (NNP DNA)))))) (VP (VBZ forms) (NP (DT the) (JJ respective) (NN etheno) (NNS adducts))) (. .)))
For both vinyl chloride and vinyl bromide, the covalent binding of these compounds to DNA forms the respective etheno adducts.
(ROOT (S (NP (NN Hydrogen) (NN chloride)) (VP (VBZ is) (NP (DT a) (JJ covalent) (NN compound))) (. .)))