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: Gus attempted to tie his shoes. He gave a final pull and the laces did not get taunt. He looked at his work to understand what happened. Gus undid his laced and gave it another try. He pulled again and the laces got taunt.
 selected sentence: Gus attempted to tie his shoes.

Gus's shoes were untied >Causes/Enables> Gus attempted to tie his shoes