He told us that by the time he arrived, the order had already been passed down NORAD's chain of command.
( ( He ( ( told us ) ( that ( ( by ( the time ) ) ( he arrived ) ) ) ) ) ( , ( ( the order ) ( ( ( had already ) ( been ( ( passed down ) ( ( ( NORAD 's ) chain ) ( of command ) ) ) ) ) . ) ) ) )
(ROOT (S (S (NP (PRP He)) (VP (VBD told) (NP (PRP us)) (SBAR (IN that) (S (PP (IN by) (NP (DT the) (NN time))) (NP (PRP he)) (VP (VBD arrived)))))) (, ,) (NP (DT the) (NN order)) (VP (VBD had) (ADVP (RB already)) (VP (VBN been) (VP (VBN passed) (PRT (RP down)) (NP (NP (NP (NNP NORAD) (POS 's)) (NN chain)) (PP (IN of) (NP (NN command))))))) (. .)))
He told us that the order had been sent down from NORAD.
( He ( ( ( told us ) ( that ( ( the order ) ( had ( been ( ( sent down ) ( from NORAD ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP He)) (VP (VBD told) (NP (PRP us)) (SBAR (IN that) (S (NP (DT the) (NN order)) (VP (VBD had) (VP (VBN been) (VP (VBN sent) (PRT (RP down)) (PP (IN from) (NP (NNP NORAD))))))))) (. .)))