Definition: In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Input: Sentence1: One day several friends and I decided to have a picnic. Sentence2: We went out to the store and bought all the supplies. Sentence3: We then hiked through a trail to look for a lake to sit near. Sentence4: We couldn't find the lake but what we found was much better. Sentence5: We finally sat under huge beautiful tree and all had a wonderful time!
Output:
I (myself), Friends