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

Ex Input:
The Xinhai Revolution overthrew the Qing government and two thousand years of monarchy. Throughout Chinese history, old dynasties had always been replaced by new dynasties. The Xinhai Revolution, however, was the first to overthrow a monarchy completely and attempt to establish a republic to spread democratic ideas throughout China. Though in 1911 at the provisional government welcome ceremony, Sun Yat-sen said, "The revolution is not yet successful, the comrades still need to strive for the future." . Since the 1920s, the two dominant parties-the KMT and PRC-see the Xinhai Revolution quite differently. Both sides recognize Sun Yat-sen as the Father of the Nation, but in Taiwan, they mean "Father of the Republic of China". On the mainland, Sun Yat-sen was seen as the man who helped bring down the Qing, a pre-condition for the Communist state founded in 1949. The PRC views Sun's work as the first step towards the real revolution in 1949, when the communists set up a truly independent state that expelled foreigners and built a military and industrial power. The father of New China is seen as Mao Zedong. In 1954, Liu Shaoqi was quoted as saying that the "Xinhai Revolution inserted the concept of a republic into common people". Zhou Enlai pointed out that the "Xinhai Revolution overthrew the Qing rule, ended 2000 years of monarchy, and liberated the mind of people to a great extent, and opened up the path for the development of future revolution. This is a great victory."

Ex Output:
What group does not recognize Sun Yat-sen as the Father of the Nation?


Ex Input:
On at least one occasion they succeeded and formed the Kingdom of Kurdistan, which lasted from September 1922 until July 1924.

Ex Output:
Which year did Kingdom of Kurdistan end?


Ex Input:
Neurofibromatosis type 1 (NF1) is characterized primarily by tumor formation in the nervous system, but patients report other neurological complications including pain and itch. Individuals with NF1 harbor 1 mutated NF1 allele causing heterozygous expression in all of their cells. In mice, Nf1 heterozygosity leads to hyperexcitability of sensory neurons and hyperproliferation of mast cells, both of which could lead to increased hypersensitivity and scratching in response to noxious and pruritic stimuli. To determine whether Nf1 heterozygosity may increase pain and itch behaviors independent of secondary effects of tumor formation, we used mice with a targeted, heterozygous Nf1 gene deletion (Nf1) that lack tumors. Nf1 mice exhibited normal baseline responses to thermal and mechanical stimuli. Moreover, similar to wild-type littermates, Nf1 mice developed inflammation-induced heatand mechanical hypersensitivity, capsaicin-induced nocifensive behavior, histamine-dependent or -independent scratching, and chronic constriction injury-induced cold allodynia. However, Nf1mice exhibited an attenuated first phase of formalin-induced spontaneous behavior and expedited resolution of formalin-induced heat hypersensitivity. These results are not consistent with the hypothesis that Nf1 heterozygosity alone is sufficient to increase pain and itch sensation in mice, and they suggest that additional mechanisms may underlie reports of increased pain and itch in NF1 patients. This study assessed whether Nf1 heterozygosity in mice increased hypersensitivity and scratching following noxious and pruritic stimuli. Using Nf1 mice lacking tumors, this study finds no increases in pain or itch behavior, suggesting that there is no predisposition for either clinical symptom solely due to Nf1 heterozygosity.

Ex Output:

Which is the gene mutated in type 1 neurofibromatosis?