They could not recall that any of the passengers they screened were CAPPS selectees.
( They ( ( ( could not ) ( recall ( that ( ( any ( of ( ( the passengers ) ( they screened ) ) ) ) ( were ( CAPPS selectees ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (MD could) (RB not) (VP (VB recall) (SBAR (IN that) (S (NP (NP (DT any)) (PP (IN of) (NP (NP (DT the) (NNS passengers)) (SBAR (S (NP (PRP they)) (VP (VBD screened))))))) (VP (VBD were) (NP (NNP CAPPS) (NNS selectees))))))) (. .)))
They did not screen any passengers, and had no idea who were CAPPS selectees.
( They ( ( ( ( ( ( did not ) ( screen ( any passengers ) ) ) , ) and ) ( had ( ( no idea ) ( who ( were ( CAPPS selectees ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VP (VBD did) (RB not) (VP (VB screen) (NP (DT any) (NNS passengers)))) (, ,) (CC and) (VP (VBD had) (NP (NP (DT no) (NN idea)) (SBAR (WHNP (WP who)) (S (VP (VBD were) (NP (NNP CAPPS) (NNS selectees)))))))) (. .)))