question: What is the date of birth of Aleksander Oinas's wife?
context: [["Jerzy Moes", ["Jerzy Moes( Jerzy Michal Moes; 29 September 1935- 27 April 2019) was a Polish film and television actor.", "Moes was born in Warsaw, the sixth son of Aleksander Moes and his wife Barbara Soba\u0144ska( Junosza coat of arms).", "He is also the grandson of Aleksander Juliusz Moes( 1856 \u2013 1928), a Polish landowner and industrialist from Silesia, and a nephew of W\u0142adys\u0142aw Moes( 1900 \u2013 1986)."]], ["Les Richards", ["Les Richards( date of birth unknown) was an Australian rules footballer who played with North Melbourne in the Victorian Football League( VFL)."]], ["Terence Robinson", ["Terence D. Robinson( date of birth and death unknown) was a male wrestler who competed for England."]], ["Mark Kenneth Woods", ["Mark Kenneth Woods( date of birth unknown) is a Canadian comedy writer, actor, producer, director and TV host."]], ["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."]], ["Pamela Jain", ["Pamela Jain is an Indian playback singer.", "Date of Birth:16th March."]], ["Alma Ostra-Oinas", ["Alma Rosalie Ostra-Oinas (born Alma Ostra; 4 or 16 September 1886 \u2013 2 November 1960), also known as Alma Anvelt-Ostra, was an Estonian journalist, writer and politician."]], ["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.\""]], ["Aleksander Oinas", ["Aleksander Ferdinand Oinas (28 December 1887 \u2013 3 March 1942) was an Estonian politician; he was a long-serving member of the Estonian Parliament (Riigikogu) and served three times as a government minister.", "Born in Tartu to T\u00f5nis and Marie Oinas (\"n\u00e9e\" Litter), he was the eldest of five siblings.", "His sister Emma Elisabet (nicknamed \"Elo\") would marry writer and literary critic Friedebert Tuglas.", "In 1907, he enrolled at Peter the Great St. Petersburg Polytechnic University, studying economics, and graduating in 1915.", "Oinas was a member of the Estonian Provincial Assembly, serving from 26 November 1918 and replacing Hugo Karl Ferdinand Reiman.", "He sat on the Estonian Constituent Assembly as a member of the Estonian Social Democratic Workers' Party (ESDTP), but did not sit in the first session of the Estonian Parliament (Riigikogu) which followed it.", "He was elected to the second session in 1923, but resigned on 26 March 1926 and was replaced by Voldemar Krabi.", "Oinas then sat in each of the four sessions of the Riigikogu which followed (in the National Council during the last) before the dissolution of that institution in 1940 following the Soviet annexation of Estonia.", "Oinas was Minister of the Interior between 9 May 1919 and 18 November 1919, Auditor General in 1919 and again from 1921 until 1926,Minister of Finance and Minister of Trade and Industry from 4 December 1928 to 9 July 1929, and finally Minister of Transport from 12 February 1931 to 19 February 1932.", "Oinas died on 3 March 1942 in Usolye in Perm Oblast (then called Molotov Oblast) in the Soviet Union.", "His wife was the journalist and politician Alma Ostra-Oinas; she survived him and died in 1960."]], ["Brian Saunders (weightlifter)", ["Brian Saunders( date of birth and death unknown) was a male weightlifter who competed for England."]]]
supporting_facts: [["Aleksander Oinas", 10], ["Alma Ostra-Oinas", 0]]
evidences: [["Aleksander Ferdinand Oinas", "spouse", "Alma Ostra-Oinas"], ["Alma Ostra-Oinas", "date of birth", "1886"]]
answer: 1886