The airlines bore responsibility, too.
( ( The airlines ) ( ( ( ( bore responsibility ) , ) too ) . ) )
(ROOT (S (NP (DT The) (NNS airlines)) (VP (VBD bore) (NP (NN responsibility)) (, ,) (ADVP (RB too))) (. .)))
The airlines were responsible.
( ( The airlines ) ( ( were responsible ) . ) )
(ROOT (S (NP (DT The) (NNS airlines)) (VP (VBD were) (ADJP (JJ responsible))) (. .)))