Question:
Who was the head of state of Israel in Feb, 1981?

Context:
 Chaim Weizmann is the head of the state of Israel from May, 1948 to Feb, 1949. 
 Ezer Weizman is the head of the state of Israel from May, 1993 to Jul, 2000. 
 Zalman Shazar is the head of the state of Israel from May, 1963 to May, 1973. 
 Avraham Burg is the head of the state of Israel from Jul, 2000 to Aug, 2000. 
 Dalia Itzik is the head of the state of Israel from Jan, 2007 to Jul, 2007. 
 Isaac Herzog is the head of the state of Israel from Jul, 2021 to Dec, 2022. 
 Chaim Herzog is the head of the state of Israel from May, 1983 to May, 1993. 
 Shimon Peres is the head of the state of Israel from Jul, 2007 to Jul, 2014. 
 Kadish Luz is the head of the state of Israel from Apr, 1963 to May, 1963. 
 Yitzhak Ben-Zvi is the head of the state of Israel from Dec, 1952 to Apr, 1963. 
 Moshe Katsav is the head of the state of Israel from Aug, 2000 to Jul, 2007. 
 Ephraim Katzir is the head of the state of Israel from May, 1973 to May, 1978. 
 Yitzhak Navon is the head of the state of Israel from May, 1978 to May, 1983. 
 Reuven Rivlin is the head of the state of Israel from Jul, 2014 to Jul, 2021. 
 David Ben-Gurion is the head of the state of Israel from May, 1948 to May, 1948. 
 Yosef Sprinzak is the head of the state of Israel from Nov, 1952 to Dec, 1952.

Answer:
Question:
Who was the head of state of Israel in Feb, 1981?

Context:
 Chaim Weizmann is the head of the state of Israel from May, 1948 to Feb, 1949. 
 Ezer Weizman is the head of the state of Israel from May, 1993 to Jul, 2000. 
 Zalman Shazar is the head of the state of Israel from May, 1963 to May, 1973. 
 Avraham Burg is the head of the state of Israel from Jul, 2000 to Aug, 2000. 
 Dalia Itzik is the head of the state of Israel from Jan, 2007 to Jul, 2007. 
 Isaac Herzog is the head of the state of Israel from Jul, 2021 to Dec, 2022. 
 Chaim Herzog is the head of the state of Israel from May, 1983 to May, 1993. 
 Shimon Peres is the head of the state of Israel from Jul, 2007 to Jul, 2014. 
 Kadish Luz is the head of the state of Israel from Apr, 1963 to May, 1963. 
 Yitzhak Ben-Zvi is the head of the state of Israel from Dec, 1952 to Apr, 1963. 
 Moshe Katsav is the head of the state of Israel from Aug, 2000 to Jul, 2007. 
 Ephraim Katzir is the head of the state of Israel from May, 1973 to May, 1978. 
 Yitzhak Navon is the head of the state of Israel from May, 1978 to May, 1983. 
 Reuven Rivlin is the head of the state of Israel from Jul, 2014 to Jul, 2021. 
 David Ben-Gurion is the head of the state of Israel from May, 1948 to May, 1948. 
 Yosef Sprinzak is the head of the state of Israel from Nov, 1952 to Dec, 1952.

Answer:
user
Yitzhak Navon
assistant
Question:
Who was the head of state of Israel in Feb, 1981?

Context:
 Chaim Weizmann is the head of the state of Israel from May, 1948 to Feb, 1949. 
 Ezer Weizman is the head of the state of Israel from May, 1993 to Jul, 2000. 
 Zalman Shazar is the head of the state of Israel from May, 1963 to May, 1973. 
 Avraham Burg is the head of the state of Israel from Jul, 2000 to Aug, 2000. 
 Dalia Itzik is the head of the state of Israel from Jan, 2007 to Jul, 2007. 
 Isaac Herzog is the head of the state of Israel from Jul, 2021 to Dec, 2022. 
 Chaim Herzog is the head of the state of Israel from May, 1983 to May, 1993. 
 Shimon Peres is the head of the state of Israel from Jul, 2007 to Jul, 2014. 
 Kadish Luz is the head of the state of Israel from Apr, 1963 to May, 1963. 
 Yitzhak Ben-Zvi is the head of the state of Israel from Dec, 1952 to Apr, 1963. 
 Moshe Katsav is the head of the state of Israel from Aug, 2000 to Jul, 2007. 
 Ephraim Katzir is the head of the state of Israel from May, 1973 to May, 1978. 
 Yitzhak Navon is the head of the state of Israel from May, 1978 to May, 1983. 
 Reuven Rivlin is the head of the state of Israel from Jul, 2014 to Jul, 2021. 
 David Ben-Gurion is the head of the state of Israel from May, 1948 to May, 1948. 
 Yosef Sprinzak is the head of the state of Israel from Nov, 1952 to Dec, 1952.

Answer:
user
Shimon Peres
Avraham Burg
Ezer Weizman
Reuven Rivlin
Moshe Katsav
Chaim Herzog
Isaac Herzog
Yitzhak Ben-Zvi
Yosef Sprinzak
Kadish Luz
David Ben-Gurion
Zalman Shazar
Dalia Itzik
Ephraim Katzir
Chaim Weizmann
assistant
Question:
Who was the head of state of Israel in Feb, 1981?

Context:
 Chaim Weizmann is the head of the state of Israel from May, 1948 to Feb, 1949. 
 Ezer Weizman is the head of the state of Israel from May, 1993 to Jul, 2000. 
 Zalman Shazar is the head of the state of Israel from May, 1963 to May, 1973. 
 Avraham Burg is the head of the state of Israel from Jul, 2000 to Aug, 2000. 
 Dalia Itzik is the head of the state of Israel from Jan, 2007 to Jul, 2007. 
 Isaac Herzog is the head of the state of Israel from Jul, 2021 to Dec, 2022. 
 Chaim Herzog is the head of the state of Israel from May, 1983 to May, 1993. 
 Shimon Peres is the head of the state of Israel from Jul, 2007 to Jul, 2014. 
 Kadish Luz is the head of the state of Israel from Apr, 1963 to May, 1963. 
 Yitzhak Ben-Zvi is the head of the state of Israel from Dec, 1952 to Apr, 1963. 
 Moshe Katsav is the head of the state of Israel from Aug, 2000 to Jul, 2007. 
 Ephraim Katzir is the head of the state of Israel from May, 1973 to May, 1978. 
 Yitzhak Navon is the head of the state of Israel from May, 1978 to May, 1983. 
 Reuven Rivlin is the head of the state of Israel from Jul, 2014 to Jul, 2021. 
 David Ben-Gurion is the head of the state of Israel from May, 1948 to May, 1948. 
 Yosef Sprinzak is the head of the state of Israel from Nov, 1952 to Dec, 1952.

Answer:
user
Yitzhak Navon
assistant