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.
Input: Sentence1: I bought a mixed bag of seeds at the hardware store one day. Sentence2: I went home and threw them in my garden to see what would happen. Sentence3: Every day I watered them and waited for sprouts. Sentence4: One day I saw that I had sprouts and identified them as mint. Sentence5: I prepared a mojito and waited for the garnish to grow.
Output:
I (myself)