instruction:
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.
question:
Sentence1: Tina was taking a science test. Sentence2: She was not prepared. Sentence3: She hardly studied. Sentence4: She kept it blank. Sentence5: She ended up failing.
answer:
Tina

question:
Sentence1: Bob called Erica to ask her to a Valentine's Day date. Sentence2: She told him yes that she would love to go with him. Sentence3: He was excited about the upcoming date. Sentence4: He planned everything for the perfect night. Sentence5: When he picked her up she was smiling and happy.
answer:
Bob, Erica

question:
Sentence1: I needed to make a plan for my son's birthday. Sentence2: I went to the grocery store to get some supplies. Sentence3: I bought some pizza dough and various ingredients. Sentence4: When I got home I divided the dough into individual portions. Sentence5: When they guests arrived everyone could make their own pizzas.
answer:
I (myself), My son, Guests