instruction:
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
question:
Two forms of neurofibromatosis, type 1 (NF1) and type 2 (NF2) are connected with genes localized on chromosomes 17 and 22, respectively. The genes that are inactivated in neurofibromatosis code for the proteins neurofibromine and merline, respectively. Since inactivation leads to neoplasia, they are called tumour suppressor genes. Neurofibromine shows resemblances to proteins that serve to inactivate oncogenes. Merline has a relationship with proteins that connect the cytoskeleton and the cell membrane. The precise function of the proteins is still unknown. The NF1 gene is characterized by extraordinarily high sensitivity to mutation; half the NF1 patients have not inherited the disease. In the familial form of neurofibromatosis, a mutated gene is inherited and the normal allele in the tumour is inactivated, making tumour growth possible. In the sporadic form of neurofibromatosis, both normal alleles are inactivated locally in the tissue so that a tumour develops in that place.
answer:
Which is the gene mutated in type 1 neurofibromatosis?


question:
Daniel Caligiuri (pronounced (kaliduri); born 15 January 1988 in Villingen-Schwenningen) is a German-born Italian professional footballer who plays as a midfielder for VfL Wolfsburg in the Bundesliga and the Italy national team.
answer:
What position was played by Daniel Caligiuri?


question:
The third and current Aarhus Central Station was built in 1927 by the Danish State Railway's architect K.T. Seest as a part of a plan of the whole area around the station.
answer:

When did Aarhus Central Station begin?