question: What is the date of birth of the director of film Swan Song (1945 Film)?
context: [["David Otero", ["David Otero Martin( Madrid, 17 of April 1980), known as\" El Pescao,\" is a singer, guitarist and a Spanish songwriter, formerly belonging to the pop group El Canto Del Loco."]], ["Dani Mart\u00edn", ["Daniel Mart\u00edn Garc\u00eda( born 19 February 1977) is a Spanish singer.", "He was the vocalist of the Spanish pop punk band El Canto del Loco( ECDL)."]], ["Swan Song (1945 film)", ["Swan Song (Spanish:El canto del cisne) is a 1945 Argentine romantic drama film directed by Carlos Hugo Christensen and starring Mecha Ortiz, Roberto Escalada and Miguel G\u00f3mez Bao.", "The film portrays the ultimately tragic relationship between a young composer and a more mature woman.", "For her performance Ortiz was awarded the Argentine Film Academy's Silver Condor prize for Best Actress."]], ["Brian Saunders (weightlifter)", ["Brian Saunders( date of birth and death unknown) was a male weightlifter who competed for England."]], ["El Canto cuenta su historia", ["El Canto cuenta su historia is a 1976 Argentine film."]], ["Theodred II (Bishop of Elmham)", ["Theodred II was a medieval Bishop of Elmham.", "The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997."]], ["Etan Boritzer", ["Etan Boritzer( born 1950) is an American writer of children \u2019s literature who is best known for his book\" What is God?\" first published in 1989.", "His best selling\" What is?\" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.", "Boritzer gained national critical acclaim after\" What is God?\" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.", "The other current books in the\" What is?\" series include", "What is Love?,", "What is Death?,", "What is Beautiful?,", "What is Funny?,", "What is Right?,", "What is Peace?,", "What is Money?,", "What is Dreaming?,", "What is a Friend?,", "What is True?,", "What is a Family?,", "What is a Feeling?\"", "The series is now also translated into 15 languages.", "Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.", "His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.", "Boritzer now lives in Venice, California and maintains his publishing office there also.", "He has helped numerous other authors to get published through\" How to Get Your Book Published!\" programs.", "Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.", "He is also recognized nationally as an erudite speaker on\" The Teachings of the Buddha.\""]], ["El canto del gallo", ["El canto del gallo is a 1955 Spanish drama film directed by Rafael Gil."]], ["Carlos Hugo Christensen", ["Carlos Hugo Christensen (Santiago del Estero, 15 December 1914 - Rio de Janeiro, 30 November 1999) was an Argentine film director, screenwriter and film producer.", "He was of Danish descent through his paternal side.", "Christensen directed 54 different films between 1946 and his retirement.", "In the mid 1950s he relocated to Brazil where he established his own film studio, Carlos Hugo Christensen Produ\u00e7\u00f5es Cinematogr\u00e1ficas.", "He retired from film in 1996 and died three years later of a heart attack in Brazil."]], ["Mecha Ortiz", ["Mecha Ortiz( n\u00e9e Mar\u00eda Mercedes Varela Nimo Dom\u00ednguez Castro; 1900 \u2013 1987) was a classic Argentine actress who appeared in film between 1937 and 1981, during the.", "At the 1944 Argentine Film Critics Association Awards, Ortiz won the Silver Condor Award for Best Actress for her performance in\" Safo, historia de una pasi\u00f3n\"( 1943) and won it again in 1946 for her performance in\" El canto del cisne\"( 1945).", "She was known as the Argentine Greta Garbo and for playing mysterious characters, who suffered by past misfortunes in love, mental disorders, or forbidden love.", "\" Safo, historia de una pasi\u00f3n\" was the first erotic Argentine film, though there was no nudity.", "She also played in the first film in which a woman struck a man and the first film with a lesbian romance.", "In 1981, she was awarded the Grand Prize for actresses from the National Endowment for the Arts."]]]
supporting_facts: [["Swan Song (1945 film)", 0], ["Carlos Hugo Christensen", 0]]
evidences: [["Swan Song", "director", "Carlos Hugo Christensen"], ["Carlos Hugo Christensen", "date of birth", "15 December 1914"]]
answer: 15 December 1914