Write an inquisitive question about a specific text span in a given sentence such that the answer is not in the text.

Example Input: Sentence: Now the Bothell archaeologist is back in the spotlight with another set of prehistoric bones , along with DNA evidence that helps resolve a long - standing puzzle about the first Americans .<sep>Span: Bothell
Example Output: who is bothell?

Example Input: Sentence: A tweet posted Wednesday evening on President Hassan Rouhani ' s account seemed to address the controversy , even if it stopped short of mentioning the video or the arrests directly .<sep>Span: tweet
Example Output: He uses social media?

Example Input: Sentence: " Unfortunately , people are trading on the fact these harnesses and vests have become distinguishing marks of service dogs , so now you find unscrupulous businesses who sell these things to people who want to take their dogs into the store or restaurant or in the passenger cabin of the plane , " said Paul Mundell , national director of canine programs for CCI .<sep>Span: businesses who sell these things
Example Output:
How many businesses are selling harnesses and vests for service dogs?