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: Tyler went to the zoo with his dad. He laughed when he saw all the animals doing silly things. His dad helped him take pictures of animals on the phone. He liked the pictures and was very pleased. His dad bought him an ice cream, and they went home.
 selected sentence: He laughed when he saw all the animals doing silly things.

Tyler goes to the zoo >Causes/Enables> He sees animals