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: Alex was sick in bed. Sentence2: His grandmother came over to take care of him. Sentence3: She brought Alex soup in bed and read stories. Sentence4: Alex loved having grandma over. Sentence5: Alex asked his grandma to live with him always.
A:
Alex, Alex's grandmother