Boston Center immediately advised the New England Region that it was going to stop all departures at airports under its control.
( ( Boston Center ) ( immediately ( ( ( advised ( the ( New ( England Region ) ) ) ) ( that ( it ( was ( going ( to ( ( stop ( all departures ) ) ( at ( airports ( under ( its control ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NNP Boston) (NNP Center)) (ADVP (RB immediately)) (VP (VBD advised) (NP (DT the) (NNP New) (NNP England) (NNP Region)) (SBAR (IN that) (S (NP (PRP it)) (VP (VBD was) (VP (VBG going) (S (VP (TO to) (VP (VB stop) (NP (DT all) (NNS departures)) (PP (IN at) (NP (NP (NNS airports)) (PP (IN under) (NP (PRP$ its) (NN control))))))))))))) (. .)))
Boston center told the new England region to halt all departures. 
( ( Boston center ) ( ( ( told ( the ( new ( England region ) ) ) ) ( to ( halt ( all departures ) ) ) ) . ) )
(ROOT (S (NP (NNP Boston) (NN center)) (VP (VBD told) (NP (DT the) (JJ new) (NNP England) (NN region)) (S (VP (TO to) (VP (VB halt) (NP (DT all) (NNS departures)))))) (. .)))