story: Last week my friends and I got sleds together and went on a hill. We all had races going down and running back up. I won most of them but it was almost a tie. My best friend finally gave up when he was too tired. It was a fun day and we all felt like winners.
 selected sentence: My best friend finally gave up when he was too tired.
My friend gave up when tired >Causes> My friend feel(s) happy