A manager at the Herndon Command Center asked FAA headquarters if they wanted to order a nationwide ground stop.
( ( ( A manager ) ( at ( the ( Herndon ( Command Center ) ) ) ) ) ( ( ( asked ( FAA headquarters ) ) ( if ( they ( wanted ( to ( order ( a ( nationwide ( ground stop ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN manager)) (PP (IN at) (NP (DT the) (NNP Herndon) (NNP Command) (NNP Center)))) (VP (VBD asked) (NP (NNP FAA) (NNS headquarters)) (SBAR (IN if) (S (NP (PRP they)) (VP (VBD wanted) (S (VP (TO to) (VP (VB order) (NP (DT a) (JJ nationwide) (NN ground) (NN stop))))))))) (. .)))
No one in Herndon inquired about a ground stop.  
( ( ( No one ) ( in Herndon ) ) ( ( inquired ( about ( a ( ground stop ) ) ) ) . ) )
(ROOT (S (NP (NP (DT No) (NN one)) (PP (IN in) (NP (NNP Herndon)))) (VP (VBD inquired) (PP (IN about) (NP (DT a) (NN ground) (NN stop)))) (. .)))