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: I was driving to my friends house one day. While driving on the road, I saw flashing lights. I pulled over and cops walked to my window to my surprise. They told me I was speeding and I apologized. They gave me a warning and then let me go.
 selected sentence: While driving on the road, I saw flashing lights.

I was on my way to my friends house >Causes/Enables> I saw flashing lights on the road 