At the same time, the Sudanese regime began to change.
( ( At ( the ( same time ) ) ) ( , ( ( the ( Sudanese regime ) ) ( ( began ( to change ) ) . ) ) ) )
(ROOT (S (PP (IN At) (NP (DT the) (JJ same) (NN time))) (, ,) (NP (DT the) (NNP Sudanese) (NN regime)) (VP (VBD began) (S (VP (TO to) (VP (VB change))))) (. .)))
The Sudan regime changed at the same time.
( ( The ( Sudan regime ) ) ( ( changed ( at ( the ( same time ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Sudan) (NN regime)) (VP (VBD changed) (PP (IN at) (NP (DT the) (JJ same) (NN time)))) (. .)))