story: One day, my mom bought me a gumball from a machine. It was a bright blue gumball and it was very hard. The gumball was so hard that I could barely chew it. Even though it was hard to chew I blew the largest bubbles with it. I blew one bubble so big that it popped all over my face.
 selected sentence: One day, my mom bought me a gumball from a machine.
My mom buys me a gumball >Causes/Enables> I chew the gumball