( ( Redox reactions ) ( ( are ( reactions ( ( in which ) ( electrons ( are transferred ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Redox) (NNS reactions)) (VP (VBP are) (NP (NP (NNS reactions)) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (NNS electrons)) (VP (VBP are) (VP (VBN transferred))))))) (. .)))
Redox reactions are reactions in which electrons are transferred.
(ROOT (S (NP (DT A) (NN redox) (NN reaction)) (VP (VBZ rearranges) (NP (NP (DT the) (JJ subatomic) (NNS particles)) (VP (VBN known) (PP (IN as) (NP (NNS electrons)))))) (. .)))