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

Q: Sentence: Such products are made possible by recent advances in technology that allow manufacturers to create nano - sized silver and incorporate it into various materials .<sep>Span: nano - sized

A: What unit of measure determines this?
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Q: Sentence: Harvey relies on his Newports to see him through his hard days .<sep>Span: Newports

A: What are Newports?
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Q: Sentence: Washington Park residents are pinning their hopes on President Barack Obama — that he will select the U . of C . to host his presidential library and that the university will build it on the swath of vacant , city - owned land adjacent to the “ L . ”  While the site for the library will not be announced until early 2015, Chicago is considered by some observers to be the front - runner , partly because of the president and first lady Michelle Obama ’ s strong personal and political ties to the city .<sep>Span: hopes

A:
What hopes do they have?
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