question: When is the director of film Kalteva Torni 's birthday?
context: [["Timo Koivusalo", ["Timo Johannes Koivusalo (born 31 October 1963) is a Finnish actor, director, writer, columnist, composer and musician.", "His most successful film to date was \"Rentun Ruusu\", which debuted in the movie theaters in 2001.", "He has directed, written and acted in a number of films and is also an accomplished composer and musician."]], ["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."]], ["Bonanno Pisano", ["Bonanno Pisano( Pisa), active in the 1170s and 1180s, was an Italian sculptor, mixing Byzantine and classical elements.", "Giorgio Vasari attributed the realization of the Leaning Tower of Pisa to him in his\" Vite\".", "Pisano was born in Pisa and worked there most of his life.", "In the 1180s, he departed for Monreale, in Sicily, where he completed the doors to the cathedral before returning to Pisa, where he died.", "Pisano was buried at the foot of the leaning tower, where his sarcophagus was discovered in 1820.", "Between March 1179 and March 1180, he created the bronze Porta Reale of the cathedral of Pisa, which was destroyed in the 1595 fire."]], ["Ian Barry (director)", ["Ian Barry is an Australian director of film and TV."]], ["Brian Saunders (weightlifter)", ["Brian Saunders( date of birth and death unknown) was a male weightlifter who competed for England."]], ["Terence Robinson", ["Terence D. Robinson( date of birth and death unknown) was a male wrestler who competed for England."]], ["Peter Levin", ["Peter Levin is an American director of film, television and theatre."]], ["Kalteva torni", ["Kalteva Torni (English: \"The Leaning Tower\"), is a 2006 Finnish comedy film, directed by Timo Koivusalo.", "It was premiered in Finland on 20 October 2006.", "The leading roles are played by Martti Suosalo, Seela Sella, Liisa Kuoppam\u00e4ki, Siiri Suosalo, Esko Nikkari, Mats L\u00e5ngbacka, Laura Jurkka, Jemina Sillanp\u00e4\u00e4 and Risto Salmi.", "It is the story of a benevolent man who does not know he has multiple personalities.", "His greatest fear is that he will not be able to see the Leaning Tower of Pisa before it falls.", "His adventures lead him into tricky situations and, eventually, he does see it."]], ["James Trubshaw", ["James Trubshaw (13 February 1777 \u2013 28 October 1853) was an English builder, architect and civil engineer.", "His civil engineering works include the construction of the Grosvenor Bridge in Chester, Cheshire, then the longest stone span.", "He also pioneered the technique of underexcavation with the straightening the leaning tower of St Chad's in Wybunbury, Cheshire."]], ["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.\""]]]
supporting_facts: [["Kalteva torni", 0], ["Timo Koivusalo", 0]]
evidences: [["The Leaning Tower", "director", "Timo Koivusalo"], ["Timo Koivusalo", "date of birth", "31 October 1963"]]
answer: 31 October 1963