Definition: 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.
Input: story: Last year Bob was an inch too short to get on the big coaster. This year when he walked up to the measuring stick he was tall enough. He proudly got into the front car with his dad. He couldn't believe how much fun it was! He rode it four times that day.
 selected sentence: This year when he walked up to the measuring stick he was tall enough.

Bob grows >Causes/Enables> Bob is now tall enough