Shortly after the first call, Barbara Olson reached her husband again.
( ( Shortly ( after ( the ( first call ) ) ) ) ( , ( ( Barbara Olson ) ( ( ( reached ( her husband ) ) again ) . ) ) ) )
(ROOT (S (PP (RB Shortly) (IN after) (NP (DT the) (JJ first) (NN call))) (, ,) (NP (NNP Barbara) (NNP Olson)) (VP (VBD reached) (NP (PRP$ her) (NN husband)) (ADVP (RB again))) (. .)))
The call only last 15 seconds.
( ( The call ) ( only ( ( last ( 15 seconds ) ) . ) ) )
(ROOT (S (NP (DT The) (NN call)) (ADVP (RB only)) (VP (VBP last) (NP (CD 15) (NNS seconds))) (. .)))