question: Who is the mother of the director of film Mercy (2000 Film)?
context: [["Minamoto no Chikako", ["She was the mother of Prince Morinaga."]], ["Susan B. Nelson", ["Susan B. Nelson( April 13, 1927 \u2013 May 4, 2003) was an American environmental activist who is best known as the mother of the Santa Monica Mountains National Recreation Area."]], ["Damian Harris", ["Damian David Harris (born 2 August 1958) is a British film director and screenwriter.", "He is the son of the actor Richard Harris and socialite Elizabeth Rees-Williams."]], ["Trinidad Tecson", ["Trinidad Perez Tecson (November 18, 1848 \u2013 January 28, 1928), known as the \"Mother of Biak-na-Bato\" and \"Mother of Mercy\", fought to gain Philippines independence.", "She was given the title \"Mother of Biak-na-Bato\" by Gen. Emilio Aguinaldo.", "She was also cited as the \"Mother of the Philippine National Red Cross\" for her service to her fellow Katipuneros."]], ["Keku\u02bbiapoiwa II", ["Keku\u02bbiapoiwa II was a Hawaiian chiefess and the mother of the king Kamehameha I."]], ["Peter Levin", ["Peter Levin is an American director of film, television and theatre."]], ["Fatima bint Mubarak Al Ketbi", ["Fatima bint Mubarak Al Ketbi is the third wife of Sheikh Zayed bin Sultan Al Nahyan, the founder and inaugural president of United Arab Emirates, and late emir( ruler) of Abu Dhabi.", "She is referred to as the mother of sheikhs and as the Mother of the UAE."]], ["Ian Barry (director)", ["Ian Barry is an Australian director of film and TV."]], ["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."]], ["Mercy (2000 film)", ["Mercy is a 2000 erotic thriller film directed by Damian Harris and starring Ellen Barkin.", "The movie was based on a novel written by David L. Lindsey."]]]
supporting_facts: [["Mercy (2000 film)", 0], ["Damian Harris", 1]]
evidences: [["Mercy", "director", "Damian Harris"], ["Damian Harris", "mother", "Elizabeth Rees-Williams"]]
answer: Elizabeth Rees-Williams