Question: What nationality was Shawn Slovo's father?

Context paragraphs:
Shawn Slovo: Shawn Slovo (born 1950) is a screenwriter, best known for the film "A World Apart", based on her childhood in South Africa under apartheid.  She is the daughter of South African Communist Party leaders Joe Slovo and Ruth First.  She wrote the screenplay for the 2006 film "Catch a Fire" (also a historical film about apartheid), and for the 2001 film "Captain Corelli's Mandolin".

Syrian nationality law: Syrian nationality law is the law governing the acquisition, transmission and loss of Syrian citizenship.  Syrian citizenship is the status of being a citizen of the Republic of Syria and it can be obtained by birth or naturalisation.  The Syrian nationality is transmitted by paternity (father) (see Jus sanguinis).  Therefore, Syrian nationality is determined solely by the father's nationality, while the place of birth is irrelevant.  In other words, birthright citizenship is not recognized since being born in Syria does not grant an automatic right to become a national.  In most cases, individuals are deemed to be Syrian nationals regardless of whether they are born inside or outside Syria as long as their father holds Syrian nationality.

Lev Mei: Mei was born on 13/25 February 1822, in Moscow.  His father was a German officer who was wounded in the Battle of Borodino and died young.  His mother was Russian.  Mei completed his studies in Moscow in 1841 and served in the office of the Governor for 10 years.  He became part of the "young editorial staff" of Mikhail Pogodin's "Moskvityanin".  For a time, he taught secondary school, but was forced to retire because of conflicts with his colleagues.  He moved to Saint Petersburg, where he was active in literary endeavors.  It was during this period that he contributed to the leading Russian magazines, including "Biblioteka Dlya Chteniya", "Otechestvennye Zapiski", "Syn Otechestva", "Russkoye Slovo", "Russky Mir", and "Svetoch".

Catch a Fire (film): Catch a Fire is a 2006 biographical thriller film about activists against apartheid in South Africa.  The film was directed by Phillip Noyce, from a screenplay written by Shawn Slovo.  Slovo's father, Joe Slovo, and mother Ruth First, leaders of the South African Communist Party and activists in the Anti-Apartheid Movement, appear as characters in the film, while her sister, Robyn Slovo, is one of the film's producers and also plays their mother Ruth First.  "Catch a Fire" was shot on location in South Africa, Swaziland and Mozambique.

A World Apart (film): A World Apart is a 1988 anti-Apartheid drama, written by Shawn Slovo and directed by Chris Menges.  It is based on the lives of Slovo's parents, Ruth First and Joe Slovo.  The film was a co-production between companies from the UK and Zimbabwe, where the movie was filmed.  It features Hans Zimmer's first non-collaborative film score.

Moroccan nationality law: Moroccan nationality law is the subject of the Moroccan Dahir (decree) of September 6, 1958, official Bulletin Number 2394.  In general, Moroccan nationality is transmitted by filiation (father and mother) or birth in Morocco.  However, it gives the right to Moroccan males to transmit citizenship to their children and foreign wives, and since the last update, that is possible for women.  The aim of the update was to follow Morocco's recent human rights reforms, most notably the Moroccan family code called, "Mudawana", which aimed to fight gender inequality.  It has been done after much debate in the media.

British Nationality Act 1772: The British Nationality Act 1772 (13 Geo.  3 c. 21) was an Act of the Parliament of Great Britain was a British nationality law which made general provision allowing natural-born allegiance (citizenship) to be assumed if the father alone were British.

Lebanese nationality law: Lebanese nationality law is the law governing the acquisition, transmission and loss of Lebanese citizenship.  Lebanese citizenship is the status of being a citizen of the Republic of Lebanon and it can be obtained by birth or naturalisation.  The Lebanese nationality is transmitted by paternity (father) (see Jus sanguinis).  Therefore, a Lebanese man who holds Lebanese citizenship can automatically confer citizenship to his children and foreign wife (only if entered in the Civil Acts Register in the Republic of Lebanon).  Under the current law, descendants of Lebanese emigrants can only receive citizenship from their father and women cannot pass on citizenship to their children or foreign spouses.  On 12 November 2015, the Parliament of Lebanon approved a draft law that would allow "foreigners of Lebanese origin to get citizenship", the Minister of Foreign Affairs and Emigrants Gebran Bassil announced on 5 May 2016 the beginning of the implementation of citizenship law for Lebanese diaspora.

Joe Slovo: Joe Slovo (born Yossel Mashel Slovo; 23 May 1926 – 6 January 1995) was a South African politician, an opponent of the apartheid system.  He was a long-time leader of the South African Communist Party (SACP), a leading member of the African National Congress (ANC), and a commander of the ANC's military wing Umkhonto we Sizwe.

Muhammad Ali's Greatest Fight: Muhammad Ali's Greatest Fight is a 2013 American television drama film about the late boxer Muhammad Ali's refusal to report for induction into the United States military during the Vietnam War, focusing on how the United States Supreme Court decided to rule in Ali's favor in the 1971 case of "Clay v. United States".  The film was directed by Stephen Frears, from a screenplay written by Shawn Slovo based on the 2000 book "Muhammad Ali's Greatest Fight: Cassius Clay vs. the United States of America" by Howard Bingham and Max Wallace.  It premiered on HBO on October 5, 2013.

Supporting paragraphs: A World Apart (film) Joe Slovo
Answer: South African