Problem: Virgil:

The tradition holds that Virgil was born in the village of Andes, near Mantua in Cisalpine Gaul. Analysis of his name has led to beliefs that he descended from earlier Roman colonists. Modern speculation ultimately is not supported by narrative evidence either from his own writings or his later biographers. Macrobius says that Virgil's father was of a humble background; however, scholars generally believe that Virgil was from an equestrian landowning family which could afford to give him an education. He attended schools in Cremona, Mediolanum, Rome and Naples. After considering briefly a career in rhetoric and law, the young Virgil turned his talents to poetry.

Does Macrobius believe Virgil's father came from a distinguished or humble background?
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A: humble

Problem: Florida High Speed Rail was a proposed government backed high-speed rail system that would have connected Miami, Orlando, and Tampa. The first phase was planned to connect Orlando and Tampa and was offered federal funding, but it was turned down by Governor Rick Scott in 2011. The second phase of the line was envisioned to connect Miami. By 2014, a private project known as All Aboard Florida by a company of the historic Florida East Coast Railway began construction of a higher-speed rail line in South Florida that is planned to eventually terminate at Orlando International Airport.
What company isn't responsible for All Aboard Florida?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The city management and urban policy program was ranked first in the nation, and the special education program second, by U.S. News & World Report's 2016 rankings. USN&WR also ranked several programs in the top 25 among U.S. universities.
In what tier did a number of KU's programs rank in 2015?
A: unanswerable

Context and question: Melbourne is experiencing high population growth, generating high demand for housing. This housing boom has increased house prices and rents, as well as the availability of all types of housing. Subdivision regularly occurs in the outer areas of Melbourne, with numerous developers offering house and land packages. However, after 10 years[when?] of planning policies to encourage medium-density and high-density development in existing areas with greater access to public transport and other services, Melbourne's middle and outer-ring suburbs have seen significant brownfields redevelopment.
What effect has the housing boom had on house prices and rents?
Answer: increased

Question: Proto-Slavic, sometimes referred to as Common Slavic or Late Proto-Slavic, is defined as the last stage of the language preceding the geographical split of the historical Slavic languages. That language was uniform, and on the basis of borrowings from foreign languages and Slavic borrowings into other languages, cannot be said to have any recognizable dialects, suggesting a comparatively compact homeland. Slavic linguistic unity was to some extent visible as late as Old Church Slavonic manuscripts which, though based on local Slavic speech of Thessaloniki, could still serve the purpose of the first common Slavic literary language.
Is there an answer to this question: What could still serve the purpose of the first common Slavic literary language?

Answer: Old Church Slavonic manuscripts

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
All the electromagnetic motors, and that includes the types mentioned here derive the torque from the vector product of the interacting fields. For calculating the torque it is necessary to know the fields in the air gap . Once these have been established by mathematical analysis using FEA or other tools the torque may be calculated as the integral of all the vectors of force multiplied by the radius of each vector. The current flowing in the winding is producing the fields and for a motor using a magnetic material the field is not linearly proportional to the current. This makes the calculation difficult but a computer can do the many calculations needed.
How are the very few calculations to determine torque done?
A:
unanswerable