Generate a correct and concise answer for the question based on the words in the context.

[Q]: Context : It was founded as a joint venture between Chery and Israel Corporation in December 2007 under the name Chery Quantum Automotive Corporation (CQAC); the name was changed to Qoros Auto Co., Ltd. in November 2011. 
Question : Which company is the parent company of Qoros?
[A]: Chery


[Q]: Context : Based on the TR-77-580 (Romanian-built version of the Soviet T-55 tank), the TR-85 tank was developed from 1978 to 1985 and produced from 1986 until 1990. 
Question : Which was the official year for the approval of TR-85?
[A]: 1986


[Q]: Context : Floyd Patterson suffered from Alzheimer's disease and prostate cancer and had been hospitalized for a week prior to his death. 
Question : What was the sickness that killed Floyd Patterson?
[A]:
Alzheimer's disease