These measures were precautionary steps taken because of the strikes in New York.
( ( These measures ) ( ( were ( ( precautionary steps ) ( taken ( because ( of ( ( the strikes ) ( in ( New York ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS measures)) (VP (VBD were) (NP (NP (JJ precautionary) (NNS steps)) (VP (VBN taken) (PP (RB because) (IN of) (NP (NP (DT the) (NNS strikes)) (PP (IN in) (NP (NNP New) (NNP York)))))))) (. .)))
The strikes in Montreal caused those precautionary measures to be put in place.
( ( ( The strikes ) ( in Montreal ) ) ( ( ( caused ( those ( precautionary measures ) ) ) ( to ( be ( put ( in place ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNS strikes)) (PP (IN in) (NP (NNP Montreal)))) (VP (VBD caused) (NP (DT those) (JJ precautionary) (NNS measures)) (S (VP (TO to) (VP (VB be) (VP (VBN put) (PP (IN in) (NP (NN place)))))))) (. .)))