TASK DEFINITION: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
PROBLEM: Hans Ernst von Kottwitz (1 September 1757 -- 13 May 1843) was a German Pietist and philanthropist.

SOLUTION: What was Hans Ernst von Kottwitz's nationality?

PROBLEM: King Hedley II is a play by American playwright August Wilson, the eighth in his ten-part series, The Pittsburgh Cycle.

SOLUTION: Who wrote the novel King Hedley II?

PROBLEM: The Jaccard index, also known as the Jaccard similarity coefficient (originally coined coefficient de communaute by Paul Jaccard), is a statistic used for comparing the similarity and diversity of sample sets.

SOLUTION:
Who made Jaccard index known?