Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Flying Fathers, a Canadian group of Catholic priests, regularly toured North America playing exhibition hockey games for charity. One of the organization's founders, Les Costello, was a onetime NHL player who was ordained as a priest after retiring from professional hockey. Another prominent exhibition hockey team is the Buffalo Sabres Alumni Hockey Team, which is composed almost entirely of retired NHL players, the majority of whom (as the name suggests) played at least a portion of their career for the Buffalo Sabres.
Which founder of the flying fathers was once an AHL player?
A: unanswerable

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The lowest pressure that can be attained in a system is also dependent on many things other than the nature of the pumps. Multiple pumps may be connected in series, called stages, to achieve higher vacuums. The choice of seals, chamber geometry, materials, and pump-down procedures will all have an impact. Collectively, these are called vacuum technique. And sometimes, the final pressure is not the only relevant characteristic. Pumping systems differ in oil contamination, vibration, preferential pumping of certain gases, pump-down speeds, intermittent duty cycle, reliability, or tolerance to high leakage rates.
How can chamber geometry be connected?
A: unanswerable

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New Haven is a predominantly Roman Catholic city, as the city's Dominican, Irish, Italian, Mexican, Ecuadorian, and Puerto Rican populations are overwhelmingly Catholic. The city is part of the Archdiocese of Hartford. Jews also make up a considerable portion of the population, as do Black Baptists. There is a growing number of (mostly Puerto Rican) Pentecostals as well. There are churches for all major branches of Christianity within the city, multiple store-front churches, ministries (especially in working-class Latino and Black neighborhoods), a mosque, many synagogues (including two yeshivas), and other places of worship; the level of religious diversity in the city is high.
How many yeshivas are located in New Haven?
A: two

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Old English (Ænglisc, Anglisc, Englisc) or Anglo-Saxon is the earliest historical form of the English language, spoken in England and southern and eastern Scotland in the early Middle Ages. It was brought to Great Britain by Anglo-Saxon settlers probably in the mid 5th century, and the first Old English literary works date from the mid 7th century. After the Norman Conquest of 1066, English was replaced for a time as the language of the upper classes by Anglo-Norman, a relative of French, and Old English developed into the next historical form of English, known as Middle English.
Who came to Great Britain in the 500's?
A:
unanswerable