Detailed 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.
Q: Sentence1: Shelby volunteered at the local hospital. Sentence2: She would deliver stuffed bears to children before they had surgery. Sentence3: The stuffed bears helped to comfort the sick children. Sentence4: Shelby loved seeing the kids smile when she gave them a bear. Sentence5: Shelby felt like she made a difference at the hospital.
A:
Children, Shelby