question: what does Hank Schwartz and Joe Frazier have in common?
answer: boxer
context: Title: Hank Schwartz
  Passage: Henry R. (Hank) Schwartz, born in Brooklyn, is an expert in video communications technology and was involved in the broadcast, promotion, and distribution of notable boxing matches involving fighters including Muhammad Ali, Joe Frazier, and George Foreman during the 1970s.  An authority in microwave and satellite technology, Schwartz utilized his expertise to telecast major boxing events such as “The Rumble in the Jungle” in Zaire, “The Thrilla in Manila” in the Philippines, as well as other major events in Kingston, Jamaica; Caracas, Venezuela; Kuala Lumpur, Malaysia; and Madison Square Garden in New York.  Hank has developed and designed systems for E.I. Dupont, Western Electric, Bell Telephone, Westinghouse Electric, Revlon, RCA and others.  He also installed and designed the first cyclotron monitoring equipment for Columbia University’s School of Engineering.From 1974 to 1978 Schwartz served as Minister of Communications for the former Republic of Zaire.
  Title: George Johnson (boxer)
  Passage: George Raft "Scrap Iron" Johnson (December 15, 1938 – April 9, 2016) was an American heavyweight boxer whose career spanned the 1950s, 1960s and 1970s.  Johnson fought many of the top fighters of his era, including George Foreman, Joe Frazier, Sonny Liston, Jerry Quarry, Duane Bobick, Joe Bugner and Eddie Machen.  Whilst a journeyman fighter he was nonetheless notorious for being extremely durable.  He could take vast amounts of punishment.  He retired in 1975 with a record of 22-27-5.  He was inducted into the California Boxing Hall of Fame in 2005.
  Title: Joe Frazier's Gym
  Passage: Joe Frazier's Gym was a training facility owned by American professional boxer, Joe Frazier.  Frazier trained at the gym while preparing for his 1971 Fight of the Century against Muhammed Ali. 
  Title: Joe Frazier
  Passage: Joseph William Frazier (January 12, 1944 – November 7, 2011), nicknamed "Smokin' Joe", was an American professional boxer who competed from 1965 to 1981.  He reigned as the undisputed heavyweight champion from 1970 to 1973, and as an amateur won a gold medal at the 1964 Summer Olympics.  Frazier was known for his sheer strength, durability, formidable punching power, and relentless pressure fighting style.
citations: Hank Schwartz Joe Frazier