Given the task definition and input, reply with output. In this task, we ask you to write an answer to a question about the events that may happen before or after a certain event. For example, "earning money" usually appears before "spending money". Note that a lot of the questions could have more than one correct answer. We only need a single most-likely answer. Please try to keep your "answer" as simple as possible. Concise and simple "answer" is preferred over those complex and verbose ones.

Sentence: Human operators are there to monitor the systems, catch errors and fine-tune the production process for maximum efficiency. 
Question: What do the human operators do when they leave work?

human operators go home when they leave work.