You will be given a definition of a task first, then some input of the task.
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: On June 21, our building had to shut off water for repairs. Sentence2: There are 250 units in the building, and people were upset. Sentence3: The management opened up the clubroom and offered free lunch. Sentence4: They had sandwiches, chips, soda, and cookies. Sentence5: The party quieted the complaints until service was restored later.
Output:
Management, The building