Question:
Who was the head of Czech National Council in Jan, 1968?

Context:
 Evžen Erban is the head of the government of Czech National Council from Jan, 1969 to Jan, 1981. 
 Dagmar Burešová is the head of the government of Czech National Council from Jan, 1990 to Jan, 1992. 
 Milan Uhde is the head of the government of Czech National Council from Jan, 1992 to Jan, 1992. 
 Josef Kempný is the head of the government of Czech National Council from Jan, 1981 to Jan, 1989. 
 Čestmír Císař is the head of the government of Czech National Council from Jan, 1968 to Jan, 1969. 
 Jaroslav Šafařík is the head of the government of Czech National Council from Jan, 1989 to Jan, 1990.

Answer:
Question:
Who was the head of Czech National Council in Jan, 1968?

Context:
 Evžen Erban is the head of the government of Czech National Council from Jan, 1969 to Jan, 1981. 
 Dagmar Burešová is the head of the government of Czech National Council from Jan, 1990 to Jan, 1992. 
 Milan Uhde is the head of the government of Czech National Council from Jan, 1992 to Jan, 1992. 
 Josef Kempný is the head of the government of Czech National Council from Jan, 1981 to Jan, 1989. 
 Čestmír Císař is the head of the government of Czech National Council from Jan, 1968 to Jan, 1969. 
 Jaroslav Šafařík is the head of the government of Czech National Council from Jan, 1989 to Jan, 1990.

Answer:
user
Čestmír Císař
assistant
Question:
Who was the head of Czech National Council in Jan, 1968?

Context:
 Evžen Erban is the head of the government of Czech National Council from Jan, 1969 to Jan, 1981. 
 Dagmar Burešová is the head of the government of Czech National Council from Jan, 1990 to Jan, 1992. 
 Milan Uhde is the head of the government of Czech National Council from Jan, 1992 to Jan, 1992. 
 Josef Kempný is the head of the government of Czech National Council from Jan, 1981 to Jan, 1989. 
 Čestmír Císař is the head of the government of Czech National Council from Jan, 1968 to Jan, 1969. 
 Jaroslav Šafařík is the head of the government of Czech National Council from Jan, 1989 to Jan, 1990.

Answer:
user
Evžen Erban
Jaroslav Šafařík
Dagmar Burešová
Milan Uhde
Josef Kempný
assistant
Question:
Who was the head of Czech National Council in Jan, 1968?

Context:
 Evžen Erban is the head of the government of Czech National Council from Jan, 1969 to Jan, 1981. 
 Dagmar Burešová is the head of the government of Czech National Council from Jan, 1990 to Jan, 1992. 
 Milan Uhde is the head of the government of Czech National Council from Jan, 1992 to Jan, 1992. 
 Josef Kempný is the head of the government of Czech National Council from Jan, 1981 to Jan, 1989. 
 Čestmír Císař is the head of the government of Czech National Council from Jan, 1968 to Jan, 1969. 
 Jaroslav Šafařík is the head of the government of Czech National Council from Jan, 1989 to Jan, 1990.

Answer:
user
Čestmír Císař
assistant