They were promptly executed.
( They ( ( were ( promptly executed ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBD were) (VP (ADVP (RB promptly)) (VBN executed))) (. .)))
They were executed.
( They ( ( were executed ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBD were) (VP (VBN executed))) (. .)))