At 8:48, while the controller was still trying to locate American 11, a New York Center manager provided the following report on a Command Center teleconference about American 11:
( ( At 8:48 ) ( , ( ( while ( ( the controller ) ( ( was still ) ( trying ( to ( locate ( American 11 ) ) ) ) ) ) ) ( , ( ( a ( New ( York ( Center manager ) ) ) ) ( ( ( ( provided ( the ( following report ) ) ) ( on ( a ( Command ( Center teleconference ) ) ) ) ) ( about ( American 11 ) ) ) : ) ) ) ) ) )
(ROOT (S (PP (IN At) (NP (CD 8:48))) (, ,) (SBAR (IN while) (S (NP (DT the) (NN controller)) (VP (VBD was) (ADVP (RB still)) (VP (VBG trying) (S (VP (TO to) (VP (VB locate) (NP (NNP American) (CD 11))))))))) (, ,) (NP (DT a) (NNP New) (NNP York) (NNP Center) (NN manager)) (VP (VBD provided) (NP (DT the) (JJ following) (NN report)) (PP (IN on) (NP (DT a) (NNP Command) (NNP Center) (NN teleconference))) (PP (IN about) (NP (NNP American) (CD 11)))) (: :)))
American 11 was visually seen by the New York Center while the controller was not.
( ( American 11 ) ( ( ( was visually ) ( ( seen ( by ( the ( New ( York Center ) ) ) ) ) ( while ( ( the controller ) ( was not ) ) ) ) ) . ) )
(ROOT (S (NP (NNP American) (CD 11)) (VP (VBD was) (ADVP (RB visually)) (VP (VBN seen) (PP (IN by) (NP (DT the) (NNP New) (NNP York) (NNP Center))) (SBAR (IN while) (S (NP (DT the) (NN controller)) (VP (VBD was) (RB not)))))) (. .)))