TASK DEFINITION: Provided the input sentence, you're expected to write 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. Don't create questions which have explicit mentions of answers in the text. Instead, it has to be implied from what is given. In other words, we want you to use "instinct" or "common sense". Also, the written questions are not required to have a single correct answer.
PROBLEM: Sentence: Casino operators had to reassess the nature of their business.

SOLUTION: How many days a week do the casino operators go to work?

PROBLEM: Sentence: At the same time, the Sudanese regime began to change.

SOLUTION: How often did changes occur?

PROBLEM: Sentence: During a blackout , the house is attacked by aliens , who had previously killed Joe and abducted Iris .

SOLUTION:
How often do the aliens attack houses?

