xsd:string A Question about the reason or cause of a known State_of_affairs is presented as being answered by the existence of a particular Fact. The exact chain of reasoning, including the answer itself, of which the Fact is a part is not specified. Contrast this frame with the Evidence frame which casts a Support (a fact) as providing Evidence for, or conclusively proving, the Proposition (another proposed fact). Thus, there is no open question in the Evidence frame. Ruby's orange vest marked with the words "service dog" accounts for why the 3-year-old goes along. The nation's history explains why the current conflict succumbs to, and yet simultaneously transcends, the stereotype. Then that I exist is explained by A and B having come together. Lack of potential for improvement in the immediate future accounts for the low number of returnees into South Ossetia, even for the Ossetian ethnic group. That explains it. Somehow this explains why Apple is always the last man to get the technology.