Question:
Who was the head of Amstelveen in Jan, 1976?

Context:
 Fred de Graaf is the head of the government of Amstelveen from Jan, 2014 to Jul, 2014. 
 Otto van Diepen is the head of the government of Amstelveen from Jan, 1984 to Jan, 1997. 
 Dirk Rijnders is the head of the government of Amstelveen from Jan, 1955 to Jan, 1971. 
 Tjapko Poppens is the head of the government of Amstelveen from May, 2019 to Dec, 2022. 
 Bas Eenhoorn is the head of the government of Amstelveen from Oct, 2017 to May, 2019. 
 Pieter Beelaerts van Blokland is the head of the government of Amstelveen from Jan, 1971 to Jan, 1977. 
 Wilhelm Herman Daniël Quarles van Ufford is the head of the government of Amstelveen from Jan, 1978 to Jan, 1984. 
 Mirjam van 't Veld is the head of the government of Amstelveen from Jul, 2014 to Sep, 2017. 
 Jan van Zanen is the head of the government of Amstelveen from Jan, 2005 to Dec, 2013. 
 Harry Kamphuis is the head of the government of Amstelveen from Jan, 1997 to Jan, 2005.

Answer:
Question:
Who was the head of Amstelveen in Jan, 1976?

Context:
 Fred de Graaf is the head of the government of Amstelveen from Jan, 2014 to Jul, 2014. 
 Otto van Diepen is the head of the government of Amstelveen from Jan, 1984 to Jan, 1997. 
 Dirk Rijnders is the head of the government of Amstelveen from Jan, 1955 to Jan, 1971. 
 Tjapko Poppens is the head of the government of Amstelveen from May, 2019 to Dec, 2022. 
 Bas Eenhoorn is the head of the government of Amstelveen from Oct, 2017 to May, 2019. 
 Pieter Beelaerts van Blokland is the head of the government of Amstelveen from Jan, 1971 to Jan, 1977. 
 Wilhelm Herman Daniël Quarles van Ufford is the head of the government of Amstelveen from Jan, 1978 to Jan, 1984. 
 Mirjam van 't Veld is the head of the government of Amstelveen from Jul, 2014 to Sep, 2017. 
 Jan van Zanen is the head of the government of Amstelveen from Jan, 2005 to Dec, 2013. 
 Harry Kamphuis is the head of the government of Amstelveen from Jan, 1997 to Jan, 2005.

Answer:
user
Pieter Beelaerts van Blokland
assistant
Question:
Who was the head of Amstelveen in Jan, 1976?

Context:
 Fred de Graaf is the head of the government of Amstelveen from Jan, 2014 to Jul, 2014. 
 Otto van Diepen is the head of the government of Amstelveen from Jan, 1984 to Jan, 1997. 
 Dirk Rijnders is the head of the government of Amstelveen from Jan, 1955 to Jan, 1971. 
 Tjapko Poppens is the head of the government of Amstelveen from May, 2019 to Dec, 2022. 
 Bas Eenhoorn is the head of the government of Amstelveen from Oct, 2017 to May, 2019. 
 Pieter Beelaerts van Blokland is the head of the government of Amstelveen from Jan, 1971 to Jan, 1977. 
 Wilhelm Herman Daniël Quarles van Ufford is the head of the government of Amstelveen from Jan, 1978 to Jan, 1984. 
 Mirjam van 't Veld is the head of the government of Amstelveen from Jul, 2014 to Sep, 2017. 
 Jan van Zanen is the head of the government of Amstelveen from Jan, 2005 to Dec, 2013. 
 Harry Kamphuis is the head of the government of Amstelveen from Jan, 1997 to Jan, 2005.

Answer:
user
Wilhelm Herman Daniël Quarles van Ufford
Fred de Graaf
Harry Kamphuis
Mirjam van 't Veld
Otto van Diepen
Dirk Rijnders
Bas Eenhoorn
Tjapko Poppens
Jan van Zanen
assistant
Question:
Who was the head of Amstelveen in Jan, 1976?

Context:
 Fred de Graaf is the head of the government of Amstelveen from Jan, 2014 to Jul, 2014. 
 Otto van Diepen is the head of the government of Amstelveen from Jan, 1984 to Jan, 1997. 
 Dirk Rijnders is the head of the government of Amstelveen from Jan, 1955 to Jan, 1971. 
 Tjapko Poppens is the head of the government of Amstelveen from May, 2019 to Dec, 2022. 
 Bas Eenhoorn is the head of the government of Amstelveen from Oct, 2017 to May, 2019. 
 Pieter Beelaerts van Blokland is the head of the government of Amstelveen from Jan, 1971 to Jan, 1977. 
 Wilhelm Herman Daniël Quarles van Ufford is the head of the government of Amstelveen from Jan, 1978 to Jan, 1984. 
 Mirjam van 't Veld is the head of the government of Amstelveen from Jul, 2014 to Sep, 2017. 
 Jan van Zanen is the head of the government of Amstelveen from Jan, 2005 to Dec, 2013. 
 Harry Kamphuis is the head of the government of Amstelveen from Jan, 1997 to Jan, 2005.

Answer:
user
Pieter Beelaerts van Blokland
assistant