Question:
Who was the chair of Polish People's Party in Sep, 1990?

Context:
 Roman Bartoszcze is the chair of Polish People's Party from May, 1990 to Jun, 1991. 
 Władysław Kosiniak-Kamysz is the chair of Polish People's Party from Nov, 2015 to Dec, 2022. 
 Janusz Piechociński is the chair of Polish People's Party from Nov, 2012 to Nov, 2015. 
 Waldemar Pawlak is the chair of Polish People's Party from Jun, 1991 to Oct, 1997. 
 Jarosław Kalinowski is the chair of Polish People's Party from Oct, 1997 to Mar, 2004. 
 Janusz Wojciechowski is the chair of Polish People's Party from Mar, 2004 to Jan, 2005.

Answer:
Question:
Who was the chair of Polish People's Party in Sep, 1990?

Context:
 Roman Bartoszcze is the chair of Polish People's Party from May, 1990 to Jun, 1991. 
 Władysław Kosiniak-Kamysz is the chair of Polish People's Party from Nov, 2015 to Dec, 2022. 
 Janusz Piechociński is the chair of Polish People's Party from Nov, 2012 to Nov, 2015. 
 Waldemar Pawlak is the chair of Polish People's Party from Jun, 1991 to Oct, 1997. 
 Jarosław Kalinowski is the chair of Polish People's Party from Oct, 1997 to Mar, 2004. 
 Janusz Wojciechowski is the chair of Polish People's Party from Mar, 2004 to Jan, 2005.

Answer:
user
Roman Bartoszcze
assistant
Question:
Who was the chair of Polish People's Party in Sep, 1990?

Context:
 Roman Bartoszcze is the chair of Polish People's Party from May, 1990 to Jun, 1991. 
 Władysław Kosiniak-Kamysz is the chair of Polish People's Party from Nov, 2015 to Dec, 2022. 
 Janusz Piechociński is the chair of Polish People's Party from Nov, 2012 to Nov, 2015. 
 Waldemar Pawlak is the chair of Polish People's Party from Jun, 1991 to Oct, 1997. 
 Jarosław Kalinowski is the chair of Polish People's Party from Oct, 1997 to Mar, 2004. 
 Janusz Wojciechowski is the chair of Polish People's Party from Mar, 2004 to Jan, 2005.

Answer:
user
Janusz Piechociński
Janusz Wojciechowski
Jarosław Kalinowski
Władysław Kosiniak-Kamysz
Waldemar Pawlak
assistant
Question:
Who was the chair of Polish People's Party in Sep, 1990?

Context:
 Roman Bartoszcze is the chair of Polish People's Party from May, 1990 to Jun, 1991. 
 Władysław Kosiniak-Kamysz is the chair of Polish People's Party from Nov, 2015 to Dec, 2022. 
 Janusz Piechociński is the chair of Polish People's Party from Nov, 2012 to Nov, 2015. 
 Waldemar Pawlak is the chair of Polish People's Party from Jun, 1991 to Oct, 1997. 
 Jarosław Kalinowski is the chair of Polish People's Party from Oct, 1997 to Mar, 2004. 
 Janusz Wojciechowski is the chair of Polish People's Party from Mar, 2004 to Jan, 2005.

Answer:
user
Roman Bartoszcze
assistant