Retirement tax questions

I also thought this a confusing question.  I also prefer understanding the tax or other future impact of an answer, and I can't seem to dig it out of IRS documents.

 

It may help to have examples of situations where someone would answer NO.  Is the question simply, "did you have any input into the amount you received?"  If you did have input, the answer is NO?  I just can't imagine getting a payment from a pension isn't a YES answer... so why isn't the question simpler?