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: Bobby was excited for the weekend. Sentence2: His father had promised to take him to the zoo. Sentence3: Unfortunately it started raining Saturday morning. Sentence4: Bobby's father took him to the zoo anyways. Sentence5: Bobby got to see the baby elephant splash in the rain puddles.
A:
His father, Baby elephant, Bobby