Q: 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: Maria was at the zoo. Sentence2: She was so excited seeing all of the animals. Sentence3: Her favorite, though, were the penguins. Sentence4: She went to see them, but saw that the exhibit was closed that day. Sentence5: She was very sad she missed them.
A:
Penguins, Maria