Question:
Who was the head of state of Estonian Soviet Socialist Republic in Jan, 1960?

Context:
 Johannes Käbin is the head of the state of Estonian Soviet Socialist Republic from Jul, 1978 to Apr, 1983. 
 Johannes Vares is the head of the state of Estonian Soviet Socialist Republic from Aug, 1940 to Nov, 1946. 
 Johan Eichfeld is the head of the state of Estonian Soviet Socialist Republic from Feb, 1958 to Oct, 1961. 
 Aleksander Ansberg is the head of the state of Estonian Soviet Socialist Republic from Oct, 1970 to Dec, 1970. 
 Artur Vader is the head of the state of Estonian Soviet Socialist Republic from Dec, 1970 to May, 1978. 
 Aleksei Müürisepp is the head of the state of Estonian Soviet Socialist Republic from Oct, 1961 to Oct, 1970. 
 Eduard Päll is the head of the state of Estonian Soviet Socialist Republic from Mar, 1947 to Jul, 1950. 
 Nigol Andresen is the head of the state of Estonian Soviet Socialist Republic from Nov, 1946 to Mar, 1947. 
 Meta Vannas is the head of the state of Estonian Soviet Socialist Republic from May, 1978 to Jul, 1978.

Answer:
Question:
Who was the head of state of Estonian Soviet Socialist Republic in Jan, 1960?

Context:
 Johannes Käbin is the head of the state of Estonian Soviet Socialist Republic from Jul, 1978 to Apr, 1983. 
 Johannes Vares is the head of the state of Estonian Soviet Socialist Republic from Aug, 1940 to Nov, 1946. 
 Johan Eichfeld is the head of the state of Estonian Soviet Socialist Republic from Feb, 1958 to Oct, 1961. 
 Aleksander Ansberg is the head of the state of Estonian Soviet Socialist Republic from Oct, 1970 to Dec, 1970. 
 Artur Vader is the head of the state of Estonian Soviet Socialist Republic from Dec, 1970 to May, 1978. 
 Aleksei Müürisepp is the head of the state of Estonian Soviet Socialist Republic from Oct, 1961 to Oct, 1970. 
 Eduard Päll is the head of the state of Estonian Soviet Socialist Republic from Mar, 1947 to Jul, 1950. 
 Nigol Andresen is the head of the state of Estonian Soviet Socialist Republic from Nov, 1946 to Mar, 1947. 
 Meta Vannas is the head of the state of Estonian Soviet Socialist Republic from May, 1978 to Jul, 1978.

Answer:
user
Johan Eichfeld
assistant
Question:
Who was the head of state of Estonian Soviet Socialist Republic in Jan, 1960?

Context:
 Johannes Käbin is the head of the state of Estonian Soviet Socialist Republic from Jul, 1978 to Apr, 1983. 
 Johannes Vares is the head of the state of Estonian Soviet Socialist Republic from Aug, 1940 to Nov, 1946. 
 Johan Eichfeld is the head of the state of Estonian Soviet Socialist Republic from Feb, 1958 to Oct, 1961. 
 Aleksander Ansberg is the head of the state of Estonian Soviet Socialist Republic from Oct, 1970 to Dec, 1970. 
 Artur Vader is the head of the state of Estonian Soviet Socialist Republic from Dec, 1970 to May, 1978. 
 Aleksei Müürisepp is the head of the state of Estonian Soviet Socialist Republic from Oct, 1961 to Oct, 1970. 
 Eduard Päll is the head of the state of Estonian Soviet Socialist Republic from Mar, 1947 to Jul, 1950. 
 Nigol Andresen is the head of the state of Estonian Soviet Socialist Republic from Nov, 1946 to Mar, 1947. 
 Meta Vannas is the head of the state of Estonian Soviet Socialist Republic from May, 1978 to Jul, 1978.

Answer:
user
Meta Vannas
Aleksander Ansberg
Eduard Päll
Nigol Andresen
Artur Vader
Aleksei Müürisepp
Johannes Käbin
Johannes Vares
assistant
Question:
Who was the head of state of Estonian Soviet Socialist Republic in Jan, 1960?

Context:
 Johannes Käbin is the head of the state of Estonian Soviet Socialist Republic from Jul, 1978 to Apr, 1983. 
 Johannes Vares is the head of the state of Estonian Soviet Socialist Republic from Aug, 1940 to Nov, 1946. 
 Johan Eichfeld is the head of the state of Estonian Soviet Socialist Republic from Feb, 1958 to Oct, 1961. 
 Aleksander Ansberg is the head of the state of Estonian Soviet Socialist Republic from Oct, 1970 to Dec, 1970. 
 Artur Vader is the head of the state of Estonian Soviet Socialist Republic from Dec, 1970 to May, 1978. 
 Aleksei Müürisepp is the head of the state of Estonian Soviet Socialist Republic from Oct, 1961 to Oct, 1970. 
 Eduard Päll is the head of the state of Estonian Soviet Socialist Republic from Mar, 1947 to Jul, 1950. 
 Nigol Andresen is the head of the state of Estonian Soviet Socialist Republic from Nov, 1946 to Mar, 1947. 
 Meta Vannas is the head of the state of Estonian Soviet Socialist Republic from May, 1978 to Jul, 1978.

Answer:
user
Johan Eichfeld
assistant