Detailed Instructions: 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.
Q: Sentence1: I was really thirsty. Sentence2: I went to the kitchen to refill my water bottle. Sentence3: I went back to my desk and realized I had forgotten my water bottle. Sentence4: I went back to the kitchen to get it. Sentence5: I spilled it all over myself.
A:
I (myself)