Question: In the 2015 Pan American Games, Canada is third behind who?
Context: Canada has competed at every edition of the Pan American Games since the second edition of the multi-sport event in 1955.  As of the last Pan American Games in 2015, Canada is third on the all time medals list, only behind the United States and Cuba.  Canada is also one of nine countries to have competed at the only Winter Pan American Games, and only of one two (the other being the United States) to win a medal at the games. María Belén Succi (born 16 October 1985) is an Argentine field hockey goalkeeper who won the gold medal at the 2007 Pan American Games , silver medal in 2015 Pan American Games and 2011 Pan American Games , the bronze medal at the 2008 Summer Olympics in Beijing with the Argentina national field hockey team.  Belén also won the 2010 World Cup in Rosario, Argentina, six Champions Trophy, the World League 2014-15 and three Pan American Cups. Federico Grabich (born 26 March 1990) is an Argentine competitive swimmer.  At the 2012 Summer Olympics he finished 41st overall in the heats in the Men's 100 metre backstroke and failed to reach the semifinals.  Federico won the bronze medal at the 2011 Pan American Games and the gold and silver medal at the 2015 Pan American Games.  At the South American Games he won ten medals (two of them were gold).  At the 2015 Pan American Games, Grabich won the 100m Freestyle, setting a new Argentine record.  He also won a silver medal in 200m, setting another Argentine record.  In August 2015, he won the bronze medal at the World Championships, being the first medal for his country in a World Championship and the silver medal at the World Cup in Qatar. The 2015 Pan American Games Parade of Nations occurred at the 2015 Pan American Games opening ceremony, held beginning at 18:45 Eastern Daylight Time () on July 10, 2015.  41 athletes bearing the flags of their respective nations led their national delegations as they paraded into Pan Am Ceremonies Venue in the host city of Toronto, Ontario, Canada. Racquetball has been part of the Pan American Games since 1995 Games in Mar del Plata, Argentina, although it was not included in the 2007 Games.  Racquetball was again included in the 2011 Pan American Games in Guadalajara, Mexico, and the 2015 Pan American Games in Toronto, Ontario.  Racquetball is on the program for the 2019 Pan American Games in Lima, Peru.  The United States dominated the racquetball events in the first three games, but Mexico has been the dominant country in the last two games. The 2015 Pan American Games, officially the XVII Pan American Games and commonly known as the Toronto 2015 Pan-Am Games (French: "Jeux panaméricains de 2015 à Toronto" ), were a major international multi-sport event celebrated in the tradition of the Pan American Games, as governed by Pan American Sports Organization (PASO).  The games were held from July 10 to 26, 2015 in Toronto, Ontario, Canada; preliminary rounds in certain events began on July 7, 2015.  These were the third Pan American games hosted by Canada, and the first in the province of Ontario.  The Games were held at venues in Toronto and seventeen other Golden Horseshoe communities.  The Pan American Games and 2015 Parapan American Games were organized by the Toronto Organizing Committee for the 2015 Pan and Parapan American Games (TO2015). The Minden Wild Water Preserve is a current natural canoeing and kayaking slalom facility in Minden, Ontario, Canada, and was used for the 2015 Pan American Games canoe slalom events.  The facility's renovations were completed in 2014, one year before the 2015 Pan American Games began.  The venue was the furthest games venue from Toronto at about 191 km away. An all-time medal table for all Pan American Games from 1951 to 2015, is tabulated below.  PASO (Pan American Sports Organization) itself does not publish all-time tables, and publishes unofficial tables only per single Games.  This table was thus compiled by adding up single entries from the PASO database. Three cities submitted bids to host the 2015 Pan American Games and Parapan games that were recognized by the Pan American Sports Organization (PASO), all three of which made the PASO Executive Committee's shortlist.  The games were awarded to Toronto, Ontario, Canada on November 6, 2009.  The other shortlisted cities were Lima, Peru and Bogota, Colombia.  Toronto won an absolute majority of votes after just one round of voting, eliminating the need for subsequent rounds of voting.  PASO delegates and the media identified a number of factors in its favor, including the size of the country, safety, experience in staging multi sporting events, government guarantees, security and cleanliness.  Moreover, the other two nations are not as developed, and with the troubles faced with the 2011 Pan American Games, Toronto was seen as the favourite.  Mario Vazquez Rana, the president of the Pan American Sports Organization was also known to be favouring Toronto.  Moreover, the head of Lima's bid Ricardo Mungi even admitted Toronto was the best choice as they had the facilities and budget to stage the games. The 2011 Pan American Games, officially the XVI Pan American Games, was an international multi-sport event that was held from October 14–30, 2011, in Guadalajara, Jalisco, Mexico.  Some events were held in the nearby cities of Ciudad Guzmán, Puerto Vallarta, Lagos de Moreno and Tapalpa.  It was the largest multi-sport event of 2011, with approximately 6,000 athletes from 42 nations participating in 36 sports.  Both the Pan American and Parapan American Games were organized by the Guadalajara 2011 Organizing Committee (COPAG).  The 2011 Pan American Games were the third Pan American Games hosted by Mexico (the first country to do so) and the first held in the state of Jalisco.  Previously, Mexico hosted the 1955 Pan American Games and the 1975 Pan American Games, both in Mexico City.  The 2011 Parapan American Games were held 20 days after the Pan American Games have ended.
Answer: United States and Cuba.