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: My father used to be a gardener before he died. Sentence2: He had a garden with many different kinds of vegetables. Sentence3: He took good care of every single plant. Sentence4: Now that he is no longer here, I take care of his plants. Sentence5: It is a good way to remember my father.
A:
I (myself), My father, Gardener