story: Steve studied all night for an exam the next day. In the morning, he gulped coffee to stay awake for the test. By the time of the test, Steve was tired and jittery. The words on the paper seemed to swim before his eyes. Fifteen minutes into the test period, Steve had fallen asleep.
 selected sentence: Fifteen minutes into the test period, Steve had fallen asleep.
Steve feel(s) sleepy >Motivates> Steve falls asleep