TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: 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?

SOLUTION: 1986

PROBLEM: Context : The Boeing 601 (sometimes referred to as the BSS-601, and previously as the HS-601) is a communications satellite bus introduced in 1987 by Hughes Space and Communications Company. 
Question : What year was Boeing 601 commissioned?

SOLUTION: 1987

PROBLEM: Context : The Hired Hand is a 1971 American western film directed by Peter Fonda, with a screenplay by Alan Sharp. 
Question : Who had the role of director in The Hired Hand?

SOLUTION:
Peter Fonda