Question: Which director directed more stage plays, Arthur Berthelet or Amir Naderi?

Context articles: Arthur Berthelet
Tangna
Cut (2011 film)
Amir Naderi
Sherlock Holmes (1916 film)
Condition (film)
Irene Zazians
99 Homes
Monte (film)
A, B, C... Manhattan

Arthur Berthelet (1879–1949) was an American film director who went from directing stage plays (several on Broadway) to directing silent movies.
Tangna is a 1973 Iranian film directed by Amir Naderi.
 It was Naderi's second movie.
 The actors were Saeed Rad, Noori Kasrai, Enayat Bakhshi, Mohammad Eskandari and Mehri Vadadian.
Cut is a 2011 Japanese drama film directed by Amir Naderi, starring Hidetoshi Nishijima and Takako Tokiwa.
Amir Naderi (Persian: امیر نادری‎ ‎ , born 15 August 1946 in Abadan) is an Iranian film director, screenwriter, and photographer.
 He is best known for "The Runner" and "Vegas: Based on a True Story".
Sherlock Holmes is a 1916 American silent film starring William Gillette as Arthur Conan Doyle's Sherlock Holmes.
 The film, which was directed by Arthur Berthelet, was produced by Essanay Studios in Chicago.
 It was adapted from the 1899 stage play of the same name, which was based on the stories, "A Scandal in Bohemia," "The Final Problem," and "A Study in Scarlet" by Arthur Conan Doyle.
Condition is a 2011 science fiction film, directed by Andrei Severny and produced by Amir Naderi.
 The film is a meditative psychological drama set in apocalyptic atmosphere.
 The story is a sensory battle of the two female characters: sound therapist Mary Taggert and her patient, a disturbed young woman named Alaska.
 The doctor evacuates with her patient, driving a car away from the city to unspecified northern territory towards the border.
 Having run out of gas, two women are stranded in mysterious rough and rocky wilderness close to the ocean where it becomes a battle for survival and a struggle with the inner wounds and salvation with sound and nature.
 The psychologically complex and slow narrative of "Condition" relies on sequences of abstract images that one could expect to see at a museum or gallery.
Irene Zazians (Armenian: Իրեն Զազյանց ; Persian: ایرن زازیانس‎ ‎ ; August 20, 1927 — July 28, 2012), best known as Iren in Iran, was an Iranian-Armenian actress.
 She cooperated with some famous Iranian new wave directors in Iran, both before and after 1979 revolution such as Samuel Khachikian, Amir Naderi, Nosrat Karimi, Masoud Kimiyayi, and Alireza Davood Nejad.
 Her two films after the revolution were banned, The Red Line directed by Kimiyayi and The Reward by Davood Nejad.
99 Homes is a 2014 American drama film directed by Ramin Bahrani, and written by Bahrani and Amir Naderi.
 The film stars Andrew Garfield, Michael Shannon and Laura Dern.
 Set in Florida, the film follows single father Dennis Nash (Garfield) and his family as they are evicted from their home by businessman Rick Carver (Shannon), forcing Nash to help Carver in evicting people out of their homes in exchange for their own home.
 Bahrani dedicated the film to the late film critic Roger Ebert.
 It competed for the Golden Lion at the 71st Venice International Film Festival.
 It won Grand Prix at 2015 Deauville American Film Festival.
 It also screened in the Special Presentations section of the 2014 Toronto International Film Festival.
 The film was released in a limited release on September 25, 2015, by Broad Green Pictures.
Monte is a 2016 Italian-American-French drama film co-written and directed by Amir Naderi.
 It premiered out of competition at the 73rd edition of the Venice Film Festival.
A, B, C..
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 Manhattan is a 1997 American drama film directed by Amir Naderi.
 It was screened in the Un Certain Regard section at the 1997 Cannes Film Festival.