Question:
Who was the chair of National Council of Switzerland in Mar, 2021?

Context:
 Irène Kälin is the chair of National Council of Switzerland from Nov, 2021 to Dec, 2022. 
 Andreas Aebi is the chair of National Council of Switzerland from Nov, 2020 to Nov, 2021. 
 Isabelle Moret is the chair of National Council of Switzerland from Dec, 2019 to Nov, 2020.

Answer:
Question:
Who was the chair of National Council of Switzerland in Mar, 2021?

Context:
 Irène Kälin is the chair of National Council of Switzerland from Nov, 2021 to Dec, 2022. 
 Andreas Aebi is the chair of National Council of Switzerland from Nov, 2020 to Nov, 2021. 
 Isabelle Moret is the chair of National Council of Switzerland from Dec, 2019 to Nov, 2020.

Answer:
user
Andreas Aebi
assistant
Question:
Who was the chair of National Council of Switzerland in Mar, 2021?

Context:
 Irène Kälin is the chair of National Council of Switzerland from Nov, 2021 to Dec, 2022. 
 Andreas Aebi is the chair of National Council of Switzerland from Nov, 2020 to Nov, 2021. 
 Isabelle Moret is the chair of National Council of Switzerland from Dec, 2019 to Nov, 2020.

Answer:
user
Irène Kälin
Isabelle Moret
assistant
Question:
Who was the chair of National Council of Switzerland in Mar, 2021?

Context:
 Irène Kälin is the chair of National Council of Switzerland from Nov, 2021 to Dec, 2022. 
 Andreas Aebi is the chair of National Council of Switzerland from Nov, 2020 to Nov, 2021. 
 Isabelle Moret is the chair of National Council of Switzerland from Dec, 2019 to Nov, 2020.

Answer:
user
Andreas Aebi
assistant