Question:
Who was the chair of Open Source Initiative in Dec, 2013?

Context:
 Simon Phipps is the chair of Open Source Initiative from Jan, 2012 to May, 2015. 
 Allison Randal is the chair of Open Source Initiative from May, 2015 to Sep, 2017. 
 Simon Phipps is the chair of Open Source Initiative from Sep, 2017 to May, 2019.

Answer:
Question:
Who was the chair of Open Source Initiative in Dec, 2013?

Context:
 Simon Phipps is the chair of Open Source Initiative from Jan, 2012 to May, 2015. 
 Allison Randal is the chair of Open Source Initiative from May, 2015 to Sep, 2017. 
 Simon Phipps is the chair of Open Source Initiative from Sep, 2017 to May, 2019.

Answer:
user
Simon Phipps
assistant
Question:
Who was the chair of Open Source Initiative in Dec, 2013?

Context:
 Simon Phipps is the chair of Open Source Initiative from Jan, 2012 to May, 2015. 
 Allison Randal is the chair of Open Source Initiative from May, 2015 to Sep, 2017. 
 Simon Phipps is the chair of Open Source Initiative from Sep, 2017 to May, 2019.

Answer:
user
Simon Phipps
Allison Randal
assistant
Question:
Who was the chair of Open Source Initiative in Dec, 2013?

Context:
 Simon Phipps is the chair of Open Source Initiative from Jan, 2012 to May, 2015. 
 Allison Randal is the chair of Open Source Initiative from May, 2015 to Sep, 2017. 
 Simon Phipps is the chair of Open Source Initiative from Sep, 2017 to May, 2019.

Answer:
user
Simon Phipps
assistant