In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

Q: Rio de Janeiro (CNN) A showcase of Brazilian culture will wrap up the 2016 Summer Olympic Games in Rio Sunday with the staging of the closing ceremony at Maracana Stadium. Organizers said more than 41,000 tickets have been sold for the event but there are still spots available, ranging from 600 reais to 3,000 reais ($187 to $936 USD). Most of the details are being kept under lock and key, but organizers have released some information about the giant party. Rosa Magalhaes, the creative director for the closing ceremony, said it will be a festive atmosphere with a touch of melancholy.Closing ceremony begins Sunday at 7 p.m. ET12,000 volunteers will take partBrazil's acting President will not participate 
 Question:Magalhaes noted that while the _ is a great venue, it does present some challenges for the creative team, especially when trying to recreate the big samba floats that Rio's carnival is known for.

A: Maracana Stadium
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Q: (CNN) -- What role did Pakistan play in the operation against Osama bin Laden? I would be surprised if Pakistan played a significant role in the operation to apprehend and kill Osama bin Laden, based on the fact that the drone strikes that the U.S. conduct in the tribal areas are done covertly, the authorities in Pakistan are not informed until the very last minute, because of the fear of information leaks. An operation of this scale in the central urban heartland of Pakistan would mean that information would be kept on a need-to-know basis. Only a few people within the CIA would have known about this operation, it would definitely not have gone out to another country's intelligence agency, especially when there's so little trust with the ISI [Inter-Services Intelligence, the Pakistani intelligence service].Gohel: Pakistani authorities will have been kept in the dark because of a lack of trustProtests and propaganda set to follow the death of Osama bin Laden, he saysGohel: Retaliation attacks are likely, but may not happen immediately. 
 Question:U.S. interests, U.S. personnel, _ embassies and consulates will have to take extra precautions.

A: U.S.
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Q: The Queen was today joined by her husband the Duke of Edinburgh as she met the Canadian Highlanders to mark the bravery of the country's servicemen and women in the First World War. Her Majesty, who looked elegant in a long blue jacket which she wore over a cream and blue floral dress, was joined by Prince Philip and Princess Alexandra at the reception in Trafalgar Square, central London. During the First World War commemorations, the monarch posed for a photograph with The Calgary Highlanders - who were all dressed in kilts - while Prince Philip sat for a portrait with The Royal Hamilton Light Infantry.The Queen attends reception as part of First World War commemorationsShe was joined by her husband the Duke of Edinburgh at London eventAt reception, Her Majesty posed with Calgary Highlanders dressed in kilts 
 Question:The Queen's cousin, Princess Alexandra (left), was all smiles as she arrived with _ and Prince Philip.

A:
Queen
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