 It's quite often very useful to have a yes or no question. It might seem a waste of a question but actually that takes a moment to answer and then you have that key piece of information. Sometimes it's very useful not only to ask about like explicit questions where they need to feed the information but also to ask for documents and then it might take less time for them to answer but then the documents will contain much more information if they're willing to share. Quite often one thing they will bring back is suggesting that the request is too broad and we need to narrow it down. It can be part of the strategy to lock them into having to respond to the feed information requests by asking you to narrow it down and then you narrow it down further.