Sentence 1: Bert was waiting at the airport when there was a bomb alert. 
 Sentence 3: As Bert didn't like crowds, he panicked 
 Sentence 4:  He left the airport in a hurry 
 Sentence 5:  In his car, he called his agent to reschedule his flight 
 Given Sentence 2: The whole airport became chaotic in a matter of minutes.