Task: Question Answering
Input (English): Context: Confucian virtues and patriarchal authority, and he is thought to have modelled his speeches on those of Sun Yat-sen. Kwan appeared in cameo roles in The Family Strikes Back and Aces Go Places 4 (both 1986). His final film appearance was in the 1994 family comedy film It's a Wonderful Life!, at the age of 89, some 61 years after his acting career began. In Bey Logan's audio commentary for the film The Magnificent Butcher, he states that though there is a grave marker to Kwan Tak-hing in Kowloon territory, his ashes were taken to San Francisco to rest with those of his second wife, whom he met whilst travelling in the US, whilst raising money for the Chinese war effort. He died at the age of 92 of pancreatic cancer. 
 Question: The cause of death for Kwan Tak-hing was what?
Output (English): pancreatic cancer