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: His assertion that the mystery man didn ' t look anything like modern Native Americans infuriated Northwest Tribes , who consider the remains those of an ancestor and sued for the right to rebury what they call the Ancient One .<sep>Span: infuriated
Example Output: Why were they infuriated over this claim?

Example Input: Sentence: It ' s 10 a . m . Monday inside the call center of Connecticut ' s new insurance exchange established under the Affordable Care Act , the federal health law .<sep>Span: Connecticut ' s
Example Output: When was Connecticut's insurance exchange established?

Example Input: Sentence: Now , capitalizing on consumers ' fear of germs , companies are adding tiny , powerful silver particles to cutting boards , underwear , yoga mats , running shirts , socks and an expanding array of other " antibacterial " goods .<sep>Span: companies
Example Output:
What companies?