Definition: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Input: Passage: The son of Julian and Lady Caroline Faber, Faber comes from an aristocratic political family drawn from the Whig and latterly the Conservative traditions. His maternal grandfather Harold Macmillan was Prime Minister at the time of his birth. His grandmother, Lady Dorothy Cavendish, was descended from three Prime Ministers, the 4th Duke of Devonshire (17561757), the 2nd Earl of Shelburne (1782-1783) and the 3rd Duke of Portland (1783 and 18071809), related by marriage to President John F. Kennedy. Faber's great-great-great-granduncle was Lord Hartington and his great-grandfather Victor Cavendish, 9th Duke of Devonshire was also statesman. His cousin Andrew Cavendish, 11th Duke of Devonshire was married to Deborah Mitford. His uncle Maurice Macmillan was a leading figure of Edward Heath's 1970s government.
Link Information: Lady (Ann) Caroline Faber (29 August 1923 14 September 2016) Question: What year was David Faber's mother born?
Output:
Answer: 1923