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.

[Q]: Sentence: Police Captain Richard Brookwell calls Cross and his partner , Tommy Kane , to the crime scene .
[A]: How often are they being called to crime scenes?


[Q]: Sentence: As measured by these standards, we recorded the best year in safety performance in our Company's history.
[A]: How often do they record their safety performance?


[Q]: Sentence: Because the same amount of matter still exists, we can say that matter is conserved.
[A]:
How often is matter conserved?


