Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
One advantage of the black box technique is that no programming knowledge is required. Whatever biases the programmers may have had, the tester likely has a different set and may emphasize different areas of functionality. On the other hand, black-box testing has been said to be "like a walk in a dark labyrinth without a flashlight." Because they do not examine the source code, there are situations when a tester writes many test cases to check something that could have been tested by only one test case, or leaves some parts of the program untested.
Testers and developers are kept together for what reason?
A: unanswerable

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The convergence of these various sources into a uniform theory of groups started with Camille Jordan's Traite des substitutions et des equations algebriques (1870). Walther von Dyck (1882) introduced the idea of specifying a group by means of generators and relations, and was also the first to give an axiomatic definition of an "abstract group", in the terminology of the time. As of the 20th century, groups gained wide recognition by the pioneering work of Ferdinand Georg Frobenius and William Burnside, who worked on representation theory of finite groups, Richard Brauer's modular representation theory and Issai Schur's papers. The theory of Lie groups, and more generally locally compact groups was studied by Hermann Weyl, Elie Cartan and many others. Its algebraic counterpart, the theory of algebraic groups, was first shaped by Claude Chevalley (from the late 1930s) and later by the work of Armand Borel and Jacques Tits.
When did the uniform theory of groups develop from different sources?
A: 1870

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The Hudson River flows through the Hudson Valley into New York Bay. Between New York City and Troy, New York, the river is an estuary. The Hudson River separates the city from the U.S. state of New Jersey. The East Rivera tidal straitflows from Long Island Sound and separates the Bronx and Manhattan from Long Island. The Harlem River, another tidal strait between the East and Hudson Rivers, separates most of Manhattan from the Bronx. The Bronx River, which flows through the Bronx and Westchester County, is the only entirely fresh water river in the city.
Which river seperates The Bronx from Manhatten?
A: The Harlem River

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The rugby union team The Rock is the Eastern Canadian entry in the Americas Rugby Championship. The Rock play their home games at Swilers Rugby Park, as did the Rugby Canada Super League champions for 2005 and 2006, the Newfoundland Rock. The city hosted a Rugby World Cup qualifying match between Canada and the USA on 12 August 2006, where the Canadians heavily defeated the USA 567 to qualify for the 2007 Rugby World Cup finals in France. The 2007 age-grade Rugby Canada National Championship Festival was held in the city.
In what year did Canada beat USA 567 in a Rugby World Cup qualifying match?
A:
2006