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.
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Question: story: Dan kept 40 keys on his key ring because he thought it was cool. He tried to get into his house but couldn't find the right key. He was tired of waiting so he just swung his key ring at the window. The glass smashed and he was able to break into his own house. Dan decided to reduce his keys on his ring to only 10.
selected sentence: Dan decided to reduce his keys on his ring to only 10.

Answer: Dan keeps 40 keys >Causes/Enables> Dan reduces his keys to only 10

Question: story: Billy decided he wanted to make a robot. He worked for many months to get it just right. Once finished, he wanted to show it off. Billy took the robot to school to show his friends and teachers. When he turned the robot on, it exploded in flames.
selected sentence: He worked for many months to get it just right.

Answer: Billy decides to make a robot >Causes/Enables> Billy works many months on perfecting the robot

Question: story: Tim was upset. He couldn't tie his shoe. His father came to help. He showed him how to do it. The boy found it very simple.
selected sentence: His father came to help.

Answer:
He can't tie his shoe >Causes/Enables> His father comes to help