Question:
Who was the head of Tilloy-lez-Marchiennes in Dec, 2021?

Context:
 Marie Cau is the head of the government of Tilloy-lez-Marchiennes from May, 2020 to Dec, 2022. 
 Jean-Luc Bot is the head of the government of Tilloy-lez-Marchiennes from Jan, 1999 to May, 2020. 
 Liliane Deparis is the head of the government of Tilloy-lez-Marchiennes from Jan, 1990 to Jan, 1999.

Answer:
Question:
Who was the head of Tilloy-lez-Marchiennes in Dec, 2021?

Context:
 Marie Cau is the head of the government of Tilloy-lez-Marchiennes from May, 2020 to Dec, 2022. 
 Jean-Luc Bot is the head of the government of Tilloy-lez-Marchiennes from Jan, 1999 to May, 2020. 
 Liliane Deparis is the head of the government of Tilloy-lez-Marchiennes from Jan, 1990 to Jan, 1999.

Answer:
user
Marie Cau
assistant
Question:
Who was the head of Tilloy-lez-Marchiennes in Dec, 2021?

Context:
 Marie Cau is the head of the government of Tilloy-lez-Marchiennes from May, 2020 to Dec, 2022. 
 Jean-Luc Bot is the head of the government of Tilloy-lez-Marchiennes from Jan, 1999 to May, 2020. 
 Liliane Deparis is the head of the government of Tilloy-lez-Marchiennes from Jan, 1990 to Jan, 1999.

Answer:
user
Liliane Deparis
Jean-Luc Bot
assistant
Question:
Who was the head of Tilloy-lez-Marchiennes in Dec, 2021?

Context:
 Marie Cau is the head of the government of Tilloy-lez-Marchiennes from May, 2020 to Dec, 2022. 
 Jean-Luc Bot is the head of the government of Tilloy-lez-Marchiennes from Jan, 1999 to May, 2020. 
 Liliane Deparis is the head of the government of Tilloy-lez-Marchiennes from Jan, 1990 to Jan, 1999.

Answer:
user
Marie Cau
assistant