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: The large truck was stuck in the sand by the lake. The tide was coming in and the water was over the truck's tires. Brian ran to a nearby farm and asked for help. The farmer got his tractor and drove it to the truck. The farmer pulled the truck out of the water with the tractor.
 selected sentence: The large truck was stuck in the sand by the lake.

Brian drives the truck in the sand >Causes/Enables> The truck gets stuck in the sand