instruction:
Use a disfluent question or a proper question and find the answer to the question based on the given context or return None if an answer can't be found. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
question:
proper question: What is the key bed?
disfluent question: What can you say about a fault that penetrates the top rocks and sorry but not the lower formations?
context: The principle of cross-cutting relationships pertains to the formation of faults and the age of the sequences through which they cut. Faults are younger than the rocks they cut; accordingly, if a fault is found that penetrates some formations but not those on top of it, then the formations that were cut are older than the fault, and the ones that are not cut must be younger than the fault. Finding the key bed in these situations may help determine whether the fault is a normal fault or a thrust fault.
answer:
None

question:
proper question: What co-receptor makes recognition more difficult?
disfluent question: What co-receptor are infected with pathogens oopsie makes recognition more difficult?
context: Killer T cells are a sub-group of T cells that kill cells that are infected with viruses (and other pathogens), or are otherwise damaged or dysfunctional. As with B cells, each type of T cell recognizes a different antigen. Killer T cells are activated when their T cell receptor (TCR) binds to this specific antigen in a complex with the MHC Class I receptor of another cell. Recognition of this MHC:antigen complex is aided by a co-receptor on the T cell, called CD8. The T cell then travels throughout the body in search of cells where the MHC I receptors bear this antigen. When an activated T cell contacts such cells, it releases cytotoxins, such as perforin, which form pores in the target cell's plasma membrane, allowing ions, water and toxins to enter. The entry of another toxin called granulysin (a protease) induces the target cell to undergo apoptosis. T cell killing of host cells is particularly important in preventing the replication of viruses. T cell activation is tightly controlled and generally requires a very strong MHC/antigen activation signal, or additional activation signals provided by helper T cells (see below).
answer:
None

question:
proper question: What was the fort that was being destroyed to be named?
disfluent question: How many, no let me ask; what was the fort that was being destroyed to be named?
context: Even before Washington returned, Dinwiddie had sent a company of 40 men under William Trent to that point, where in the early months of 1754 they began construction of a small stockaded fort. Governor Duquesne sent additional French forces under Claude-Pierre Pecaudy de Contrecur to relieve Saint-Pierre during the same period, and Contrecur led 500 men south from Fort Venango on April 5, 1754. When these forces arrived at the fort on April 16, Contrecur generously allowed Trent's small company to withdraw. He purchased their construction tools to continue building what became Fort Duquesne.
answer:
None