In this task, you will be given a short story. One sentence from the story is chosen. Consider the events that happen after that sentence. Is any of them directly caused by it, or is made possible by it? 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. Do not change the main selected sentence in your answer.

Example input: story: Greg picked up his friend. They went off road trucking. The truck got stuck. Greg couldn't get it out himself. Greg got it out with his friend'.
 selected sentence: Greg picked up his friend.
Example output: Greg picks up his friend >Causes/Enables> They go off road trucking
Example explanation: The person picking up his friends makes them going off road trucking possible, so this is a correct answer.
Q: story: Gina was waiting on her grandpa to return home. She wanted him to take her to the store to buy chips. When he returned home he was too tired to go to the store. Gina would have to wait until tomorrow to get the chips. She was disappointed, but there was nothing she could do.
 selected sentence: When he returned home he was too tired to go to the store.
A:
Gina's grandpa comes home >Causes/Enables> Gina's grandpa goes to sleep