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.

Sentence1: Anna was babysitting her young cousins. Sentence2: They were bored and wanted to play outside. Sentence3: So Anna gave them a box of chalk. Sentence4: They went outside to draw with it. Sentence5: Anna kept them amused all day!
Cousins, Anna