Question:
Which position did Evert Båge hold in Jan, 1987?

Context:
 Evert Båge holds the position of Chief of the Air Staff from Jan, 1980 to Jan, 1984. 
 Evert Båge holds the position of wing commander from Jan, 1969 to Jan, 1973. 
 Evert Båge holds the position of chief of staff from Jan, 1978 to Jan, 1980. 
 Evert Båge holds the position of school commander from Jan, 1984 to Jan, 1990.

Answer:
Question:
Which position did Evert Båge hold in Jan, 1987?

Context:
 Evert Båge holds the position of Chief of the Air Staff from Jan, 1980 to Jan, 1984. 
 Evert Båge holds the position of wing commander from Jan, 1969 to Jan, 1973. 
 Evert Båge holds the position of chief of staff from Jan, 1978 to Jan, 1980. 
 Evert Båge holds the position of school commander from Jan, 1984 to Jan, 1990.

Answer:
user
school commander
assistant
Question:
Which position did Evert Båge hold in Jan, 1987?

Context:
 Evert Båge holds the position of Chief of the Air Staff from Jan, 1980 to Jan, 1984. 
 Evert Båge holds the position of wing commander from Jan, 1969 to Jan, 1973. 
 Evert Båge holds the position of chief of staff from Jan, 1978 to Jan, 1980. 
 Evert Båge holds the position of school commander from Jan, 1984 to Jan, 1990.

Answer:
user
chief of staff
wing commander
Chief of the Air Staff
assistant
Question:
Which position did Evert Båge hold in Jan, 1987?

Context:
 Evert Båge holds the position of Chief of the Air Staff from Jan, 1980 to Jan, 1984. 
 Evert Båge holds the position of wing commander from Jan, 1969 to Jan, 1973. 
 Evert Båge holds the position of chief of staff from Jan, 1978 to Jan, 1980. 
 Evert Båge holds the position of school commander from Jan, 1984 to Jan, 1990.

Answer:
user
school commander
assistant