About this time, Card, the lead Secret Service agent, the President's military aide, and the pilot were conferring on a possible destination for Air Force One.
( ( About ( ( ( ( ( ( ( this time ) , ) Card ) , ) ( ( ( ( the ( lead ( Secret ( Service agent ) ) ) ) , ) ( ( the ( President 's ) ) ( military aide ) ) ) , ) ) and ) ( the pilot ) ) ) ( ( were ( conferring ( on ( ( a ( possible destination ) ) ( for ( Air ( Force One ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (RB About) (NP (DT this) (NN time)) (, ,) (NP (NNP Card)) (, ,) (NP (NP (DT the) (JJ lead) (NNP Secret) (NNP Service) (NN agent)) (, ,) (NP (NP (DT the) (NNP President) (POS 's)) (JJ military) (NN aide)) (, ,)) (CC and) (NP (DT the) (NN pilot))) (VP (VBD were) (VP (VBG conferring) (PP (IN on) (NP (NP (DT a) (JJ possible) (NN destination)) (PP (IN for) (NP (NNP Air) (NNP Force) (CD One))))))) (. .)))
The group was having a discussion about where to fly to.
( ( The group ) ( ( was ( having ( ( a discussion ) ( about ( where ( to ( fly to ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN group)) (VP (VBD was) (VP (VBG having) (NP (NP (DT a) (NN discussion)) (PP (IN about) (SBAR (WHADVP (WRB where)) (S (VP (TO to) (VP (VB fly) (PP (TO to)))))))))) (. .)))