Question:
Who was the head of state of Portugal in Oct, 2015?

Context:
 Mário Soares is the head of the state of Portugal from Mar, 1986 to Mar, 1996. 
 Aníbal Cavaco Silva is the head of the state of Portugal from Mar, 2006 to Mar, 2016. 
 Marcelo Rebelo de Sousa is the head of the state of Portugal from Mar, 2016 to Dec, 2022. 
 Jorge Sampaio is the head of the state of Portugal from Mar, 1996 to Mar, 2006.

Answer:
Question:
Who was the head of state of Portugal in Oct, 2015?

Context:
 Mário Soares is the head of the state of Portugal from Mar, 1986 to Mar, 1996. 
 Aníbal Cavaco Silva is the head of the state of Portugal from Mar, 2006 to Mar, 2016. 
 Marcelo Rebelo de Sousa is the head of the state of Portugal from Mar, 2016 to Dec, 2022. 
 Jorge Sampaio is the head of the state of Portugal from Mar, 1996 to Mar, 2006.

Answer:
user
Aníbal Cavaco Silva
assistant
Question:
Who was the head of state of Portugal in Oct, 2015?

Context:
 Mário Soares is the head of the state of Portugal from Mar, 1986 to Mar, 1996. 
 Aníbal Cavaco Silva is the head of the state of Portugal from Mar, 2006 to Mar, 2016. 
 Marcelo Rebelo de Sousa is the head of the state of Portugal from Mar, 2016 to Dec, 2022. 
 Jorge Sampaio is the head of the state of Portugal from Mar, 1996 to Mar, 2006.

Answer:
user
Marcelo Rebelo de Sousa
Mário Soares
Jorge Sampaio
assistant
Question:
Who was the head of state of Portugal in Oct, 2015?

Context:
 Mário Soares is the head of the state of Portugal from Mar, 1986 to Mar, 1996. 
 Aníbal Cavaco Silva is the head of the state of Portugal from Mar, 2006 to Mar, 2016. 
 Marcelo Rebelo de Sousa is the head of the state of Portugal from Mar, 2016 to Dec, 2022. 
 Jorge Sampaio is the head of the state of Portugal from Mar, 1996 to Mar, 2006.

Answer:
user
Aníbal Cavaco Silva
assistant