In this task, we ask you to write an answer to a question that involves event "frequency", which refers to how often an event is likely to be repeated. For example, "taking showers" typically occurs ~5 times a week, "going to Saturday market" usually happens every few weeks/months, etc. 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.
Example: Sentence: Jack played basketball after school, after which he was very tired. 
Question: How often does Jack play basketball?
Example solution: twice a week.
Example explanation: "Playing basketball" normally occurs few times a week.

Problem: Sentence: At the same time, the Sudanese regime began to change. 
Question: How often did changes occur?

Solution: frequently.