Question: Who, Henri Bergson or David Edgar, is a British playwright and writer who has had more than sixty of his plays published and performed on stage, radio and television around the world, making him one of the most prolific dramatists of the post-1960s generation in Great Britain?

Context articles: Luciano Comella
An Experiment with an Air Pump
David Edgar (playwright)
Henri Bergson
Albert Speer (play)
Playing with Fire (Edgar play)
Eugène Minkowski
Steve Waters
Tom Stoppard
Pentecost (play)

Luciano Francisco Comella (1751–1812) was a Spanish playwright.
 Author of more than two hundred plays, he was one of the most prolific dramatists of the late eighteenth century.
An Experiment with an Air Pump is a play by British playwright Shelagh Stephenson inspired by the painting "An Experiment on a Bird in the Air Pump" by Joseph Wright.
 It shared the Peggy Ramsay Award for 1997, was first performed at the Royal Exchange Theatre, Manchester in 1998, and has since been staged by a number of other companies worldwide.
 It was published in "Plays One", a collection of Stephenson's plays published in 2002.
David Edgar (born 26 February 1948) is a British playwright and writer who has had more than sixty of his plays published and performed on stage, radio and television around the world, making him one of the most prolific dramatists of the post-1960s generation in Great Britain.
Henri-Louis Bergson (] ; 18 October 1859 – 4 January 1941) was a French philosopher, influential especially in the first half of the 20th century and after WWII in continental philosophy.
Albert Speer was a 2000 play by the British playwright David Edgar on the life of the Nazi-era architect Albert Speer, based on the book "Albert Speer: His Battle with Truth" by Gitta Sereny.
 It premiered that year at the Lyttelton auditorium of the Royal National Theatre, with the title role played by Alex Jennings and the role of Hitler played by Roger Allam.
Playing with Fire is a 2005 play by the British playwright David Edgar, dealing with race relations and multiculturalism.
 It premiered at the Royal National Theatre in 2005, with a cast including David Troughton and Emma Fielding.
Eugène (Eugeniusz) Minkowski (] ; 17 April 1885 – 17 November 1972) was a French psychiatrist of Jewish Polish origin, known for his incorporation of phenomenology into psychopathology and for exploring the notion of "lived time".
 A student of Eugen Bleuler, he was also associated with the work of Ludwig Binswanger and Henri Ey.
 He was influenced by the philosophy of Henri Bergson and by the phenomenologists Edmund Husserl and Max Scheler.
 He was a prolific author in several languages and regarded as a great humanitarian.
Steve Waters is a British playwright.
 He was born in Coventry, UK.
 He studied English at Oxford University, taught in secondary schools and was a graduate of David Edgar's MA in Playwriting in 1993, a course which he later ran for several years.
 He has written about the pedagogy of playwriting, contributed articles to The Guardian, essays to "The Blackwell Companion to Modern British and Irish Drama" and "The Cambridge Companion to Harold Pinter", and has written a book entitled, "The Secret Life of Plays" (2010).
Sir Tom Stoppard (born Tomáš Straussler; 3 July 1937) is a Czech-born British playwright and screenwriter, knighted in 1997.
 He has written prolifically for TV, radio, film and stage, finding prominence with plays such as "Arcadia", "The Coast of Utopia", "Every Good Boy Deserves Favour", "Professional Foul", "The Real Thing", and "Rosencrantz and Guildenstern Are Dead".
 He co-wrote the screenplays for "Brazil", "The Russia House", and "Shakespeare in Love", and has received one Academy Award and four Tony Awards.
 Themes of human rights, censorship and political freedom pervade his work along with exploration of linguistics and philosophy.
 Stoppard has been a key playwright of the National Theatre and is one of the most internationally performed dramatists of his generation.
 In 2008 "The Daily Telegraph" ranked him number 11 in their list of the "100 most powerful people in British culture".
Pentecost is a 1994 play by the British playwright David Edgar.
 It is named after the Jewish and Christian festival of Pentecost.
 It is set during the early 1990s and concerns the discovery of a mural in a small church.
 It is part of a trilogy of plays on the theme of negotiation set in Eastern Europe in the aftermath of the fall of the Berlin Wall: the other two plays are "The Shape of the Table" (1990) and "The Prisoner's Dilemma" (2001).