Both set off the alarm, and they were directed to a second metal detector.
( ( ( ( ( Both ( ( set off ) ( the alarm ) ) ) , ) and ) ( they ( were ( directed ( to ( a ( second ( metal detector ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT Both)) (VP (VBD set) (PRT (RP off)) (NP (DT the) (NN alarm)))) (, ,) (CC and) (S (NP (PRP they)) (VP (VBD were) (VP (VBN directed) (PP (TO to) (NP (DT a) (JJ second) (NN metal) (NN detector)))))) (. .)))
There was no alarm triggered, and there were no metal detectors..
( ( ( ( ( There ( was ( ( no alarm ) triggered ) ) ) , ) and ) ( there ( ( were ( no ( metal detectors ) ) ) . ) ) ) . )
(ROOT (S (S (NP (EX There)) (VP (VBD was) (NP (NP (DT no) (NN alarm)) (VP (VBN triggered))))) (, ,) (CC and) (S (NP (EX there)) (VP (VBD were) (NP (DT no) (NN metal) (NNS detectors))) (. .)) (. .)))