Input: Read this: Napoleon III responded with a show of force, sending the ship of the line Charlemagne to the Black Sea. This action was a violation of the London Straits Convention.:104:19 Thus, France's show of force presented a real threat, and when combined with aggressive diplomacy and money, induced the Ottoman Sultan Abdülmecid I to accept a new treaty, confirming France and the Roman Catholic Church as the supreme Christian authority with control over the Roman Catholic holy places and possession of the keys to the Church of the Nativity, previously held by the Greek Orthodox Church.:20
Question: Who previously held the keys to the Church of the Nativity?

Output: Greek Orthodox Church


Input: Read this: The football team plays at Ryan Field (formerly known as Dyche Stadium); the basketball, wrestling, and volleyball teams play at Welsh-Ryan Arena. Northwestern's athletic teams are nicknamed the Wildcats. Before 1924, they were known as "The Purple" and unofficially as "The Fighting Methodists." The name Wildcats was bestowed upon the university in 1924 by Wallace Abbey, a writer for the Chicago Daily Tribune who wrote that even in a loss to the University of Chicago, "Football players had not come down from Evanston; wildcats would be a name better suited to [Coach Glenn] Thistletwaite's boys." The name was so popular that university board members made "wildcats" the official nickname just months later. In 1972, the student body voted to change the official nickname from "Wildcats" to "Purple Haze" but the new name never stuck.
Question: What was the unofficial nickname of the Northwestern athletic teams prior to 1924?

Output: The Fighting Methodists


Input: Read this: As the Kulluk oil rig was being towed to the American state of Washington to be serviced in preparation for the 2013 drilling season, a winter storm on 27 December 2012 caused the towing crews, as well as the rescue service, to lose control of the situation. As of 1 January 2013, the Kulluk was grounded off the coast Sitkalidak Island, near the eastern end of Kodiak Island. Following the accident, a Fortune magazine contacted Larry McKinney, the executive director at the Harte Research Institute for Gulf of Mexico Studies at Texas A&M, and he explained that "A two-month delay in the Arctic is not a two-month delay ... A two-month delay could wipe out the entire drilling season."
Question: What caused towing crews and rescue service to lose control while the Kulluk rig was in transport to Washington?

Output: a winter storm


Input: Read this: Victoria's self-imposed isolation from the public diminished the popularity of the monarchy, and encouraged the growth of the republican movement. She did undertake her official government duties, yet chose to remain secluded in her royal residences—Windsor Castle, Osborne House, and the private estate in Scotland that she and Albert had acquired in 1847, Balmoral Castle. In March 1864, a protester stuck a notice on the railings of Buckingham Palace that announced "these commanding premises to be let or sold in consequence of the late occupant's declining business". Her uncle Leopold wrote to her advising her to appear in public. She agreed to visit the gardens of the Royal Horticultural Society at Kensington and take a drive through London in an open carriage.
Question: What private estate did Victoria aquire with Albert in 1847?

Output:
Balmoral Castle