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: Bob told his son to open the gate to the driveway. His boy raced out of the car to open it. The gate was stuck. Bob's daughter got out to help. Together, they were able to open the gate.
 selected sentence: Together, they were able to open the gate.

Bob's daugther helps Bob's son open the gate >Causes/Enables> Bob's daughter and son are able to open the gate