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: Allen was at the mall with his friends. He was waiting in line for the photo booth. All of sudden a girl with blonde hair and ripped jeans stepped out. Allen fell in love instantly as she walked past. He was so starstruck he couldn't even say hi as she walked away.
 selected sentence: He was so starstruck he couldn't even say hi as she walked away.

Allen saw a blonde girl with ripped jeans >Causes/Enables> Allen was so lovestruck he couldn't even say hi.