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.

[EX Q]: Sentence: The previous numismatic record holder was an 1804 U.S. silver dollar, which sold for $4.14 million in 1999.
[EX A]: How often are 1804 U.S. silver dollars purchased?

[EX Q]: Sentence: It seemed strange to him, but not as strange as it was to see Linda the brown chicken in the living room last spring.
[EX A]: How often does he find a wild animal in his house?

[EX Q]: Sentence: Alexander II's death caused a great setback for the reform movement.
[EX A]:
How often did the reform movement experience setbacks?

