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: My friend threatened my friends and I to stay still. He didn't take him seriously until he pulled a bomb out. To avoid trouble, we stood still in one line. A group of security guards broke into the house. They took away the bomb and arrested my friend.
 selected sentence: They took away the bomb and arrested my friend.

My friend pulls out a bomb >Causes/Enables> They arrest my friend