In this task, you are given a context tweet and an answer. Your job is to generate a question for the given answer based on the given tweet paragraph. Note that your question should be answerable based on the given tweet, and the answer to your question should be the given answer.

Context: It's been one year since these four boys decided to be strong and stay for us # One Direction (@1DsUniverse) March 25, 2016 Answer: four
how many boys were strong and stayed?

Context: OG BJ @bigbruce512I get why Charlie Strong feels the way he does but understand he did a lot for minority coaches by just accepting that position and enduring1/19/2017, 6:19:32 PM Answer: charlie strong
who feels a way?

Context: Flags at half mast for Whitney Houston? 4 Marines and 1 Navy serviceman assassinated by a terrorist on our soil.....nothing?— Curt Schilling (@gehrig38) July 20, 2015 Answer: whitney houston.

what singer was mourned with flags at half mast?