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.

[Q]: story: Tim was eating alone in the cafeteria. He was lonely. He thought he would never make any friends. He then felt a tap on his shoulder. It was Jim, who wanted to invite Tim to eat with his friends.
selected sentence: He then felt a tap on his shoulder.
[A]: Jim taps Tim >Causes/Enables> Tim feels the tap

[Q]: story: Martha was in her living room. Suddenly there was a knock at the door. No one was there but a big box was on her porch. She looked inside and saw a ton of gently used baby toys. It was really helpful because she was a poor mother.
selected sentence: She looked inside and saw a ton of gently used baby toys.
[A]: Someone puts a box on Martha's porch >Causes/Enables> Martha looks in the box

[Q]: story: Three days ago I brought a banana to school for lunch. I forgot the banana in my locker. Today I went to get the banana and it had turned black. I threw the banana away. I decided not to leave food in my locker ever again.
selected sentence: I decided not to leave food in my locker ever again.
[A]:
I leave food in my locker >Causes/Enables> I decide not to leave food in my locker again