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: Wes invited Doug to his grandfather's lake house. Doug loved to swim. Doug accepted the invitation to the lake house. Wes and Doug were attacked by horseflies when they swam. They spent the rest of the time inside the late house watching tv.
 selected sentence: Doug accepted the invitation to the lake house.

Wes invites Doug to the lake house >Causes/Enables> Doug accepts Wes' invitation