Part 1. Definition
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
Part 2. Example
In 1582 the united provinces invited francis, duke of anjou to lead them; but after a failed attempt to take antwerp in 1583, the duke left the netherlands again. after the assassination of william of orange (10 july 1584), both henry iii of france and elizabeth i of england declined the offer of sovereignty. however, the latter agreed to turn the united provinces into a protectorate of england (treaty of nonsuch, 1585), and sent the earl of leicester as governor-general. this was unsuccessful and in 1588 the provinces became a confederacy. the union of utrecht is regarded as the foundation of the republic of the seven united provinces, which was not recognized by the spanish empire until the peace of westphalia in 1648.
Answer: In what year did francis, duke of anjou leave the netherlands?
Explanation: The generated question is perfect. Because the question is based on second sentence of the input passage and its answer is 1583.
Part 3. Exercise
The pathogenesis of restless legs syndrome (RLS) is unknown. Although iron deficiency anemia (IDA) is related with RLS, the mechanism of this relationship is still unknown. Therefore, we decided to examine some neurophysiological parameters that reflect the function of brainstem, spinal cord and peripheral nervous system. 34 patients diagnosed with IDA at the hematology department were questioned with a structured battery for RLS and additional symptoms. Of those, 14 patients had symptoms of RLS, while remaining 20 had no signs of this disorder. In both groups, electrophysiological examination including motor and sensory nerve conduction, F-responses, H-reflex, blink-reflex, and mixed nerve silent periods was performed. Neurological examination of all patients was normal. The two groups were identical for age and sex, and the difference between both groups concerning motor and sensory nerve conduction, F-wave, H-reflex, blink-reflex, and mixed nerve silent periods was insignificant. Results suggest that IDA does not cause electrophysiological changes in the peripheral nerves, spinal cord and brainstem, and therefore, measurement of these parameters in IDA patients does not seem effective for the confirmation of RLS.
Answer:
Which deficiency is the cause of restless leg syndrome?