Sentence 1: This was the first of several occasions on 9/11 when flight attendants took action outside the scope of their training, which emphasized that in a hijacking, they were to communicate with the cockpit crew.

Sentence 2: The flight attendants took action outside the scope of their training.

If the first sentence is true, then is the second sentence true?
OPTIONS:
- yes
- it is not possible to tell
- no
yes