Question: What do Aram Avakian and Karo Parisyan have in common?

Context paragraphs:
Neil Melanson: Neil Melanson is an American combat sports coach, currently he is the Head Grappling coach at Jaco Hybrid Training Center.  He is the former Head Grappling coach at both Xtreme Couture Las Vegas and Alliance MMA.  Melanson specializes in Catch wrestling, while drawing elements from Judo.  He is especially known for his guard work, leg locks and triangle chokes.  He has trained under Gene LeBell, Gokor Chivichyan, and Karo Parisyan (who awarded him his black belt).

Pittosporum crassifolium: Pittosporum crassifolium, commonly called Karo , is a small tree or shrub native to New Zealand.  Karo's original distribution was generally the top half of the North Island, although now it has naturalised throughout New Zealand and overseas in Norfolk Island and Hawaii.  "P. crassifolium" occurs in lowland and coastal forests.  Mature trees grow to about 5 m in height.  Other common names include stiffleaf cheesewood, and in Māori, kaikaro and kīhihi .

Cops and Robbers (1973 film): Cops and Robbers is a 1973 crime comedy film directed by Aram Avakian with an original screenplay by Donald E. Westlake which Westlake subsequently expanded into a novel.  The film stars Cliff Gorman as Tom and Joseph Bologna as Joe.

Garo (name): Garo, a common Armenian first name, shortened version of Karapet (Eastern Armenian) / Garabed (Western Armenian).  For Eastern Armenian variant of Garo, namely Karo, refer to Karo (name)

Karo Parisyan: Karapet "Karo" Parisyan (Armenian: Կարապետ Փարիզյան ; born August 28, 1982) is an Armenian-American mixed martial artist, who last competed in Bellator's Welterweight division.  A professional MMA competitor since 1999, Parisyan is a former WEC Welterweight Champion and has also competed for the UFC.

End of the Road (1970 film): End of the Road is a 1970 film directed, co-written, and edited by Aram Avakian and adapted from a 1958 novel by John Barth, and stars Stacy Keach, James Earl Jones and Harris Yulin.

11 Harrowhouse: 11 Harrowhouse is a 1974 British film directed by Aram Avakian.  It was adapted by Charles Grodin based upon the novel by Gerald A. Browne with the screenplay by Jeffrey Bloom.  It stars Charles Grodin, Candice Bergen, James Mason, Trevor Howard and John Gielgud.

Aram Avakian: Aram A. Avakian (April 23, 1926 – January 17, 1987) was an Armenian-American film editor and director.  His work in the latter role includes "Jazz on a Summer's Day" (1960) and the indie film "End of the Road" (1970).

Karen Darabedyan: Karen Darabedyan (born December 18, 1986) is an Armenian professional mixed martial artist.  He is best known for fighting in WEC's lightweight division.  He is a training partner of Karo Parisyan and Manvel Gamburyan.  He had a 12-0 amateur boxing record before he began MMA.

Brian Warren: Brian Warren (born June 5, 1974) is an American mixed martial arts fighter from San Bernardino, California.  Warren has fought in many organizations including K-1, King of the Cage, Strikeforce, Kage Kombat, Pangea, and Bellator.  Warren has fought notable title holders such as Cung Le, Jason "Mayhem" Miller, Jeremy Horn, Jake Shields, and other known fighters such as TUF alum Jared Rollins, Justin Levens, Nate Loughran, Karo Parisyan, and Tiki Ghosn.  Warren won a 2nd place medal in 2003 and 3rd place medal in 2006 in the advanced men's division of Grapplers Quest.

Supporting paragraphs: Aram Avakian Karo Parisyan
Answer: Armenian-American