Definition: In this task, you're given a statement, 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: Context: In a publication of 1941, Norman Tindale, together with the American anthropologist Joseph Birdsell, published a paper suggesting that there were 12 Negrito tribes Link Information: Norman Barnett Tindale AO (12 October 1900 Question: How old were Norman Tindale and Joseph Birdsell when they published their paper about the 12 Negrito tribes?
Output:
Answer: 41