In this task you are given a short story and a question regarding that story. You must answer the question based on the events of the story. Try to use the same words in the story to answer each question. You should completely answer the question in a short answer. Do not include information that is unnecessary to answer the question.

Lilly was excited to spend the afternoon at the playground. She loves to swing. But this time she lost balance and fell off the swing. Lilly cried a little bit. Her mother quickly came to comfort her.
Why did Lilly cry a little bit?
she fell off the swing.