Question: How many acts are there in the opera in which François Le Roux portrayed Pelléas ?

Context articles: Le Roux Smith Le Roux
Pelléas et Mélisande (opera)
P. K. Le Roux
François Le Roux
Louis Napoleon Le Roux
Hughes Le Roux
Madrie Le Roux
Leroux (surname)
Pieter Louis Le Roux
Jacques le Roux

Le Roux Smith Le Roux (1914–1963), sometimes rendered LeRoux Smith LeRoux, was a South African artist, actor, broadcaster, art critic and art dealer, considered to be the most distinguished specialist muralist the country has produced.
 Le Roux was infamous for his involvement in the Great Tate Affair.
Pelléas et Mélisande ("Pelléas and Mélisande") is an opera in five acts with music by Claude Debussy.
 The French libretto was adapted from Maurice Maeterlinck's Symbolist play "Pelléas et Mélisande".
 It premiered at the Opéra-Comique in Paris on 30 April 1902 with Jean Périer as Pelléas and Mary Garden as Mélisande in a performance conducted by André Messager, who was instrumental in getting the Opéra-Comique to stage the work.
 The only opera Debussy ever completed, it is considered a landmark in 20th-century music.
Pieter Mattheus Kruger Le Roux, generally known as P. K. Le Roux (11 November 1904 – 23 June 1985) was a South African National Party politician who served as a Cabinet minister between 1958 and 1968, first as Minister of Water Affairs and Agricultural Technical Services and latterly as Minister of the Interior.
François Le Roux (born 30 October 1955) is a French baritone.
 Le Roux began vocal studies at 19 with François Loup, winning prizes in Barcelona and Rio de Janeiro.
 He was a member of the Lyon Opera Company from 1980 to 1985, before appearing in many international houses, making his Paris Opéra debut in 1988 as Valentin in Gounod's "Faust".
 He is most renowned for his portrayal of Pelléas in Debussy's opera, first singing the role in 1985 and being hailed by critics as "the greatest Pelléas of his generation".
 Since 1998 he has also sung Golaud in the same opera to similar acclaim.
 It was as Golaud he sang in the centenary performance at the Opéra-Comique, and also in the Russian national premiere.
 He voiced Gaston, the villainous hunter in the European French dub of Disney's "Beauty and the Beast (1991 film).
Louis Napoléon Le Roux (29 May 1890 – 5 August 1944) was a Breton nationalist.
 He is also known as Loeiz-Napoleon Ar Rouz in the Breton language.
 In 1911 he was one of the founders of the Breton Nationalist Party with Camille Le Mercier d'Erm.
 He typically signed himself "Louis N. Le Roux", perhaps in order to avoid using the name 'Louis Napoléon'.
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Hugues Le Roux was the stage name of Robert Charles Henri Le Roux (1860–1925), a French writer and journalist who wrote primarily about the French colonies and travel.
Madrie Le Roux (born 19 April 1995) is a South African tennis player.
 Born in Uitenhage, Le Roux was introduced to tennis at the age of 6.
 On the ITF Junior Circuit, Le Roux has been ranked as high as world number 69, which she achieved in January 2013.
Leroux (mostly northwestern France), LeRoux (American spelling), Le Roux (mostly Brittany, as a translation of Breton "Ar Rouz" or "Ar Ruz") or Roux (mostly southeastern France, as a translation of Occitan "Ros") is a surname of French origin meaning "red-haired" or "red-skinned" and may also come in certain cases (with the spelling Le Roux) from Breton "Ar Roue" meaning ″The King″.
 It may refer to:
Pieter Louis Le Roux or PL Le Roux (1865–1943) was a South African missionary, who was a leading figure in the Zion Church movement in South Africa and the Apostolic Faith Mission of South Africa.
 Le Roux was initially a missionary for the Dutch Reformed Church.
 He was heavily influenced by the healing ministry of John Alexander Dowie and his Zionist movement which he later joined.
 Later he joined the Pentecostal movement of John G. Lake and Thomas Hezmalhalch.
 He was president of the Apostolic Faith Mission of South Africa from 1913 to 1942.
 His involvement with black leaders in South Africa led to the establishment of a conglomerate of churches from both Zionist and Pentecostal backgrounds, most notably the Zion Christian Church (ZCC).
Jacques le Roux (born 21 May 1981 as Hermanus Jacobus le Roux) is a South African tenor, concert and opera singer, who has become famous through international opera and concert productions.