Problem: Given the question: Question: "What were the contestants burdened with?" Context: "The show had been criticized in earlier seasons over the onerous contract contestants had to sign that gave excessive control to 19 Entertainment over their future career, and handed a large part of their future earnings to the management." Answer:
++++++++++++++++++++++++++++++++
The answer is:
excessive control to 19 Entertainment over their future career

Problem: Given the question: Question: "Why is the system significant?" Context: "Mexico City is served by the Sistema de Transporte Colectivo, a 225.9 km (140 mi) metro system, which is the largest in Latin America. The first portions were opened in 1969 and it has expanded to 12 lines with 195 stations. The metro is one of the busiest in the world transporting approximately 4.5 million people every day, surpassed only by subway lines in Moscow (7.5 million), Tokyo (5.9 million), and New York City (5.1 million). It is heavily subsidized, and has some of the lowest fares in the world, each trip costing 5.00 pesos from 05:00 am to midnight. Several stations display pre-Columbian artifacts and architecture that were discovered during the metro's construction.[citation needed] However, the metro covers less than half of the total urban area. The Metro stations are also differentiated by the use of icons and glyphs which were proposed for people who could not read. The specific icons were developed based on historical (characters, sites, pre-Hispanic motifs), linguistic, symbolic (glyphs) or location references and has being emulated in further transportations alternatives in the City and in other Mexican cities. Mexico City is the only city in the world to use the icon reference and has become a popular culture trademark for the city." Answer:
++++++++++++++++++++++++++++++++
The answer is:
The metro is one of the busiest in the world transporting approximately 4.5 million people every day

Problem: Given the question: Question: "Which happened first, the most radical revolutionaries adopted the red flag, or the demonstration on the Champs de Mars?" Context: "The red flag appeared as a political symbol during the French Revolution, after the fall of Bastille. A law adopted by the new government on October 20, 1789 authorized the Garde Nationale to raise the red flag in the event of a riot, to signal that the Garde would imminently intervene. During a demonstration on the Champs de Mars on July 17, 1791, the Garde Nationale fired on the crowd, killed up to fifty people. The government was denounced by the more radical revolutionaries. In the words of his famous hymn, the Marseillaise, Rouget de Lisle wrote: "Against us they have raised the bloody flag of tyranny!" (Contre nous de la tyrannie, l'entendard sanglant est leve). Beginning in 1790, the most radical revolutionaries adopted the red flag themselves, to symbolize the blood of those killed in the demonstrations, and to call for the repression of those they considered counter-revolutionary." Answer:
++++++++++++++++++++++++++++++++
The answer is:
the most radical revolutionaries adopted the red flag