Question: Paulo Sevciuc, is a Brazilian former volleyball player who competed in the 1972 Summer Olympics, and played on the team which won a silver medal at which event, were held in Winnipeg, Manitoba, Canada, from July 23 to August 6, 1967?

full_context: Document 1: 1967 Pan American Games: The 5th Pan American Games were held in Winnipeg, Manitoba, Canada, from July 23 to August 6, 1967.
Document 2: Victor Barcellos Borges: Victor Mário Barcellos Borges (born 26 June 1942) is a Brazilian former volleyball player who competed in the 1964 Summer Olympics and in the 1968 Summer Olympics. He played on the teams which won a gold medal at the 1963 Pan American Games and a silver medal at the 1967 Pan American Games. He was born in Rio de Janeiro, Brazil.
Document 3: 2011 Pan American 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.
Document 4: 1963 Pan American Games: The 4th Pan American Games were held from April 20 to May 5, 1963, in São Paulo, Brazil.
Document 5: 2015 Pan American 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).
Document 6: Seiji Oko: Seiji Oko (大古　誠司 "Ōko Seiji ", born 15 February 1948) is a former volleyball player from Japan, who was a member of the Japan Men's National Team that won the gold medal at the 1972 Summer Olympics and the silver medal at the 1968 Summer Olympics.
Document 7: Antônio Carlos Moreno: Antônio Carlos Moreno (born 11 June 1948) is a Brazilian former volleyball player who competed in the 1968 Summer Olympics, in the 1972 Summer Olympics, in the 1976 Summer Olympics, and in the 1980 Summer Olympics.
Document 8: Wallace de Souza: Wallace de Souza (born 26 June 1987) is a Brazilian volleyball player, who competes for Sada Cruzeiro Vôlei and the Brazilian national team. In 2007 Wallace won the U-20 World Championship with the Brazilian national team. Playing for Vôlei Futuro he was considered one of the best players of the Superliga 08/09 and was elected the best server. His good performances took him to Sada Cruzeiro (MG). Right after, in 2010, he won the World League title. In 2011, he won a gold medal at the Pan American Games and finished the season with the World Cup bronze medal. He won silver medals at the 2012 Summer Olympics and at the 2014 FIVB World League, where he was elected the best opposite spiker of the tournament. In 2015, he had a surgery on his back that put him out of the national team for the whole season. In 2016, with the Brazilian national volleyball team, he finished second in 2016 Volleyball World League and became Olympic champion in 2016 Olympic Games.
Document 9: Paulo Silva (volleyball): Paulo André Jukoski da Silva (born December 24, 1963), known as Paulão, is a Brazilian former volleyball player who competed in the 1988 Summer Olympics, in the 1992 Summer Olympics, and in the 1996 Summer Olympics.
Document 10: Canada at the Pan American Games: 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.
Document 11: List of 2011 Pan American Games medal winners: The 2011 Pan American Games were held in Guadalajara, Mexico from October 14 to October 30, 2011. A total of about 6,000 athletes representing 42 National Olympic Committees participated in these Games. Overall, 361 events in 36 disciplines were contested; 188 events were open to men, 160 to women and 13 were in mixed competition. Two disciplines were open only to men: baseball and rugby sevens, while softball and Synchronized swimming were the sports in which only women were allowed to compete. Racquetball and basque pelota returned to the Pan American Games after missing the last edition of the Games and rugby sevens made its debut. New events in fencing, karate, squash, track cycling and water skiing made their debut at the Games.
Document 12: Paulo Sevciuc: Paulo Sevciuc (born 27 November 1943) is a Brazilian former volleyball player who competed in the 1972 Summer Olympics. He played on the team which won a silver medal at the 1967 Pan American Games.
Document 13: William Silva (volleyball): William Carvalho da Silva known as William (born November 16, 1954) is a Brazilian former volleyball player who competed in the 1976 Summer Olympics, in the 1980 Summer Olympics, in the 1984 Summer Olympics, and in the 1988 Summer Olympics.
Document 14: Décio de Azevedo: Décio Viotti de Azevedo (born 12 October 1939) is a Brazilian former volleyball player who competed in the 1964 Summer Olympics and in the 1968 Summer Olympics. He was born in Belo Horizonte, Minas Gerais, Brazil. He played on the teams which won a gold medal at the 1963 Pan American Games and a silver medal at the 1967 Pan American Games. He was born in Belo Horizonte, Minas Gerais, Brazil.
Document 15: Antigua and Barbuda at the Pan American Games: Antigua and Barbuda has competed at every edition of the Pan American Games since the seventh edition of the multi-sport event in 1979. However, Antigua and Barbuda participated in the 1959 Pan American Games as part of the British West Indies and future Prime Minister Lester Bird won a bronze medal in the long jump. Sprinter Heather Samuel won Antigua and Barbuda's first Pan Am medal in 1995, a bronze in the women's 100 metres. Sprinter, Brendan Christian won Antigua and Barbuda's first gold medal at the 2007 Pan American Games. To date, all five of Antigua and Barbuda's medals have been won in the sport of track and field. Antigua and Barbuda did not compete at the first and only Pan American Winter Games in 1990.
ground_truth: 1967 Pan American Games