question: What nationality is the director of film Ava (2017 Iranian Film)?
context: [["Ava (2017 Iranian film)", ["Ava is a 2017 internationally co-produced drama film directed and written by Sadaf Foroughi.", "It was screened in the Discovery section at the 42nd Toronto International Film Festival, where it won the FIPRESCI Discovery Prize and received an Honourable Mention for Best Canadian First Feature Film.", "In December, TIFF named the film on its annual Canada's Top Ten list of the ten best Canadian films.", "The film received eight Canadian Screen Award nominations at the 6th Canadian Screen Awards, including Best Picture, Best Director (Foroughi), Best Actress (Mahour Jabbari) and Best Supporting Actress (Bahar Noohian).", "It was named as the winner of the Canadian Screen Award for Best First Feature on 31 January 2018."]], ["John Donatich", ["John Donatich is the Director of Yale University Press."]], ["Mahour Jabbari", ["Mahour Jabbari is an Iranian actress.", "She is most noted for her performance in the 2017 film\" Ava\", for which she received a Canadian Screen Award nomination for Best Actress at the 6th Canadian Screen Awards.", "Jabbari was denied a travel visa to attend the film's premiere at the 2017 Toronto International Film Festival."]], ["Peter Levin", ["Peter Levin is an American director of film, television and theatre."]], ["Sadaf Foroughi", ["Sadaf Foroughi  (born 27 July 1976 in Tehran, Iran) is an Iranian\u2013Canadian film maker, video artist and film editor.", "Foroughi has a bachelor's degree in French literature.", "After receiving her master's degree in film studies from University of Provence in Aix-en-Provence, France, she continued her studies toward a PhD in film philosophy.", "She also completed the New York Film Academy's film-making courses.", "Her films and video art pieces have been screened in venues and festivals around the world."]], ["John Farrell (businessman)", ["John Farrell is the director of YouTube in Latin America."]], ["Bahar Noohian", ["Bahar Noohian is an Iranian film actress.", "She is most noted for her performance in the 2017 film\" Ava\", for which she won the Canadian Screen Award for Best Supporting Actress at the 6th Canadian Screen Awards."]], ["Michael Govan", ["Michael Govan( born 1963) is the director of the Los Angeles County Museum of Art since 2006.", "Prior to this, Govan worked as the director of the Dia Art Foundation in New York City."]], ["Dana Blankstein", ["Dana Blankstein- Cohen( born March 3, 1981) is the director of the Israeli Academy of Film and Television.", "She is a film director, and an Israeli culture entrepreneur."]], ["Ian Barry (director)", ["Ian Barry is an Australian director of film and TV."]]]
supporting_facts: [["Ava (2017 Iranian film)", 0], ["Sadaf Foroughi", 0]]
evidences: [["Ava", "director", "Sadaf Foroughi"], ["Sadaf Foroughi", "country of citizenship", "Iran"]]
answer: Iran