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

Example Input: Munich sincerely invites you to join the 2016 0ktoberfest--the biggest celebration of its kind in Europe. Drink beer by the liter, eat traditional Bavarian food, listen to traditional Bavarian music as well as more up-to-date music, and enjoy yourself with hundreds of other people from all over the world, dancing and singing the hours away. Oktoberfest 2016 begins on Saturday 17th September and runs through to Monday 3rd October 2016. Don't miss the events during Oktoberfest! Grand entry of the Oktoberfest landlords and breweries Date: Saturday, 17th September 2016 Duration: about 45 minutes This is the official prelude to the opening of the Oktoberfest and involves about 1,000 participants, including the landlords' families in decorated carriages, the magnificent horse-drawn drays, waitresses on decorated floats and all the beer tent bands. Oktoberfest Costume and Riflemen-s Parade Date: Sunday, 18th September 2016 Duration:2-2 1/2 hours, about 8000 performers,7 km distance A varied succession of regional costume groups, "troops" in historical uniforms, marching bands, riflemen, thoroughbred horses, oxen, cows, goats, floats displaying typical local traditions and historic carriages all pass by in a 7-kilometer-long procession through the streets of the city center. Open-Air Oktoberfest Music Date: Sunday, 25th September 2016 Place: on the steps of the Bavaria statue At the traditional open-air concert on the second Sunday of the Oktoberfest, all the instruments that make up typical Bavarian wind band music can be heard. The bands from all of the tents come together at the steps under the Bavaria statue to play the most well-known songs and marches of Oktoberfest together while being conducted by distinguished Munich personalities.
Example Output: When will visitors see costume soldiers marching on the street?

Example Input: 1. In order to investigate the biological function of the human CLN3 gene that is defective in Batten disease, we created a yeast strain by PCR-targeted disruption of the yeast gene (YHC3), which is a homologue of the human CLN3 gene. 2. The phenotypic characterization revealed that the yhc3 delta mutants are more sensitive to combined heat and alkaline stress than the wild-type strains as determined by inhibition of cell proliferation. 3. This suggests that the yhc3 delta mutant is a good model to investigate the biological function of human CLN3 gene in mammalian cells and to understand the pathophysiology of juvenile Batten disease.
Example Output: What is the effect of a defective CLN3 gene?

Example Input: There is no consensus about mechanisms underlying restless legs syndrome (RLS), also known as Willis-Ekbom disease (WED). Cortical excitability may be abnormal in RLS. Transcranial magnetic stimulation (TMS) can provide insight about cortical excitability. We reviewed studies about measures of excitability to TMS in RLS. Original studies published between January 1999 and January 2015 were searched in PubMed, Scopus, and Web of Science databases. Inclusion criteria were as follows: original studies involving primary RLS in patients from both sexes and ages between 18 and 85 years; TMS protocols clearly described; and they were written in English, in peer-reviewed journals. Fifteen manuscripts were identified. TMS protocols were heterogeneous across studies. Resting motor threshold, active motor threshold, and amplitudes of motor-evoked potentials were typically reported to be normal in RLS. A reduction in short-interval intracortical inhibition (SICI) was the most consistent finding, whereas conflicting results were described in regard to short-interval intracortical facilitation and the contralateral silent period. Decreased SICI can be reversed by treatment with dopaminergic agonists. Plasticity in the motor cortex and sensorimotor integration may be disrupted. TMS may become a useful biomarker of responsiveness to drug treatment in RLS. The field can benefit from increases in homogeneity and sizes of samples, as well as from decrease in methodological variability across studies.
Example Output:
Willis-Ekbom disease is also known as?