Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Example Input: Restless legs syndrome/Willis-Ekbom disease (RLS/WED) is commonly seen in patients with end-stage renal disease (ESRD), but this condition has not been properly recognized. The prevalence of RLS/WED in ESRD shows the ethnic variation (7%-68%), with the similar tendency of primary RLS/WED. Although RLS/WED in ESRD is defined in secondary RLS/WED, the factors of ESRD that are involved in the genesis of RLS/WED remain unknown. Even after renal transplantation, RLS/WED symptoms do not completely disappear, and genetic predisposition to RLS/WED may play an important role in causing RLS/WED. Long-term intervention for RLS/WED and ESRD will be necessary.
Example Output: Willis-Ekbom disease is also known as?

Example Input: One Girl's Confession is a 1953 low-budget film noir released by Columbia Pictures.
Example Output: What company released One Girl's Confession?

Example Input: Bokermannohyla is a genus of frogs in the Hylidae family.
Example Output:
Is Bokermannohyla a genus or species?