Given the task definition and input, reply with output. 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'.

Context: O'Malley also provided the voice of Br'er Fox in Song of the South (1946) when James Baskett was unavailable. Link Information: Baskett had been in poor health around 1946 during the filming of Song of the South due to diabetes and suffered a heart attack Question: Why was James Baskett unavailable to play Br'er Fox in Song of the South?
Answer: diabetes and suffered a heart attack