In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen before that sentence, or are likely to have happened before it. Does any of them directly cause it, or simply make it possible? You should write your answer in the form " A >causes/enables> B". Try to use phrases and sentences from the story to compose your answer when possible.

Q: story: Billy asked his mom who Superman was. Instead of telling Billy, she decided to show him. She brought Billy down to the basement where dad was working. She then asked the dad what Superman looks like. The dad flexed his muscles and Billy laughed and laughed!
selected sentence: The dad flexed his muscles and Billy laughed and laughed!

A: The dad flexes his muscles >Causes/Enables> Billy laughs
****
Q: story: Bella ran out of the school building on the last day of school. Along with most of her class, she headed to the pool. She noticed a boy looking sad, sitting on the ground. He told her he'd left his swim suit at home and it was locked. A half an hour later they both swam, he in her brother's old suit.
selected sentence: He told her he'd left his swim suit at home and it was locked.

A: The boy's parents lock the door >Causes/Enables> The door is locked
****
Q: story: Luna took a trip to Timbuktu. She didn't wear a head covering. Some men came looking very angry. Luna tried to run, but they stopped her. They smiled and told her she had dropped her purse.
selected sentence: They smiled and told her she had dropped her purse.

A:
Luna drops her purse >Causes/Enables> Some men tell Luna she dropped her purse
****