Information: - The 2004 Summer Olympic Games, officially known as the Games of the XXVIII Olympiad and commonly known as Athens 2004, was a premier international multi-sport event held in Athens, Greece, from 13 to 29 August 2004 with the motto "Welcome Home." 10,625 athletes competed, some 600 more than expected, accompanied by 5,501 team officials from 201 countries. There were 301 medal events in 28 different sports. Athens 2004 marked the first time since the 1996 Summer Olympics that all countries with a National Olympic Committee were in attendance. 2004 marked the return of the games to the city where they began. - The Pan-American or Pan American Games (also known colloquially as the Pan Am Games) is a major sporting event in the Americas featuring summer sports, in which thousands of athletes participate in a variety of competitions. The competition is held among athletes from nations of the Americas, every four years in the year before the Summer Olympic Games. The only Winter Pan American Games were held in 1990. The Pan American Sports Organization (PASO) is the governing body of the Pan American Games movement, whose structure and actions are defined by the Olympic Charter. - A National Olympic Committee (NOC) is a national constituent of the worldwide Olympic movement. Subject to the controls of the International Olympic Committee, NOCs are responsible for organizing their people's participation in the Olympic Games. They may nominate cities within their respective areas as candidates for future Olympic Games. NOCs also promote the development of athletes and training of coaches and officials at a national level within their geographies. - Beach volleyball is a team sport played by two teams of two players on a sand court divided by a net. It has been an Olympic discipline since the 1996 Games. - A multi-sport event is an organized sports event, often held over multiple days, featuring competition in many different sports between organized teams of athletes from (mostly) nation states. The first major, modern, multi-sport event of international significance is the modern Olympic Games. - The 14th Pan American Games were held in Santo Domingo, Dominican Republic, from August 1 until August 17, 2003. The successful bid for the games was made in the mid-1990s, when Dominican Republic had one of the highest growth rates in Latin America. - The 1996 Summer Olympics, known officially as the Games of the XXVI Olympiad and unofficially as the Centennial Olympic Games, was a major international multi-sport event that took place in Atlanta, Georgia, United States, from July 19 to August 4, 1996. A record 197 nations, all current IOC member nations, took part in the Games, comprising 10,318 athletes. The International Olympic Committee voted in 1986 to separate the Summer and Winter Games, which had been held in the same year since 1924, and place them in alternating even-numbered years, beginning in 1994. The 1996 Summer Games were the first to be staged in a different year from the Winter Games. Atlanta became the fifth American city to host the Olympic Games and the third to hold a Summer Olympic Games. - Juan Miguel Rossell Milanes ( born December 28 , 1969 in Jiguani , Granma ) is a beach volleyball player from Cuba , who won the gold medal in the men 's beach team competition at the 2003 Pan American Games in Santo Domingo , Dominican Republic , partnering Francisco Alvarez . He represented his native country at the 1996 and the 2004 Summer Olympics . Given the information, choose the subject and object entities that have the relation of 'participant of'.
Answer:
juan rossell , 1996 summer olympics