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

[EX Q]: Tumors of the nervous system most often occur in both children and adults as sporadic events with no family history of the disease, but they are also among the clinical manifestations of a significant number of familial cancer syndromes, including familial retinoblastoma, neurofibromatosis 1 and 2, tuberous sclerosis, and Cowden, Turcot, Li-Fraumeni and nevoid basal cell carcinoma (Gorlin) syndromes. All of these syndromes involve transmissible genetic risk resulting from loss of a functional allele, or inheritance of a structurally defective allele, of a specific gene. These genes include RB1, NF1, NF2, TSC1, TSC2, TP53, PTEN, APC, hMLH1, hPSM2, and PTCH, most of which function as tumor suppressor genes. The same genes are also observed in mutated and inactive forms, or are deleted, in tumor cells in sporadic cases of the same tumors. The nature of the mutational events that give rise to these inactivated alleles suggests a possible role of environmental mutagens in their causation. However, only external ionizing radiation at high doses is clearly established as an environmental cause of brain, nerve and meningeal tumors in humans. Transplacental carcinogenesis studies in rodents and other species emphasize the extraordinary susceptibility of the developing mammalian nervous system to carcinogenesis, but the inverse relationship of latency to dose suggests that low transplacental exposures to genotoxicants are more likely to result in brain tumors late in life, rather than in childhood. While not all neurogenic tumor-related genes in humans have similar effects in experimental rodents, genetically engineered mice (GEM) increasingly provide useful insights into the combined effects of multiple tumor suppressor genes and of gene-environment interactions in the genesis of brain tumors, especially pediatric brain tumors such as medulloblastoma.
[EX A]: Which is the gene mutated in type 1 neurofibromatosis?

[EX Q]: Plunkett finished the game with 16 out of 25 pass completions for 172 yards and a touchdown. Theismann threw for more yards than Plunkett (243), but was just 16 out of 35 and was intercepted twice. He was also sacked six times. Branch was the top receiver of the game with six receptions for 94 yards and a touchdown. Guy punted seven times for 299 yards (42.7 average), with 244 net yards (34.8 average) and planted five of his seven punts inside the 20. Martin recorded a sack, a pass deflection, and a fumble recovery. Riggins, who had rushed for over 100 yards in his last six postseason games, was held to 64 yards and a touchdown on 26 carries, with his longest gain being just 8 yards. Brown was their top receiver with three receptions for 93 yards. Tight end Clint Didier caught five passes for 65 yards. Garrett recorded 100 yards on kickoff returns, and one reception for 17 yards. Part of both of Allens touchdown runs were cutbacks, which, according to New York Daily News writer Larry Fox, burned an overpursuing Redskins defense.
[EX A]: Which player achieved more receptions, Branch or Brown?

[EX Q]: Virginia Slims is a brand of cigarette manufactured by Altria Group (formerly Phillip Morris Companies).
[EX A]:
What is the product of Virginia Slims?