Question:
Which employer did Nikolaos Mavridis work for in Oct, 2013?

Context:
 Nikolaos Mavridis works for New York University Abu Dhabi from Jan, 2011 to Jan, 2013. 
 Nikolaos Mavridis works for National Centre of Scientific Research "DEMOKRITOS" from Jan, 2013 to Jan, 2016. 
 Nikolaos Mavridis works for Innopolis University from Jan, 2015 to Jan, 2017. 
 Nikolaos Mavridis works for United Arab Emirates University from Jan, 2007 to Jan, 2011.

Answer:
Question:
Which employer did Nikolaos Mavridis work for in Oct, 2013?

Context:
 Nikolaos Mavridis works for New York University Abu Dhabi from Jan, 2011 to Jan, 2013. 
 Nikolaos Mavridis works for National Centre of Scientific Research "DEMOKRITOS" from Jan, 2013 to Jan, 2016. 
 Nikolaos Mavridis works for Innopolis University from Jan, 2015 to Jan, 2017. 
 Nikolaos Mavridis works for United Arab Emirates University from Jan, 2007 to Jan, 2011.

Answer:
user
National Centre of Scientific Research "DEMOKRITOS"
assistant
Question:
Which employer did Nikolaos Mavridis work for in Oct, 2013?

Context:
 Nikolaos Mavridis works for New York University Abu Dhabi from Jan, 2011 to Jan, 2013. 
 Nikolaos Mavridis works for National Centre of Scientific Research "DEMOKRITOS" from Jan, 2013 to Jan, 2016. 
 Nikolaos Mavridis works for Innopolis University from Jan, 2015 to Jan, 2017. 
 Nikolaos Mavridis works for United Arab Emirates University from Jan, 2007 to Jan, 2011.

Answer:
user
United Arab Emirates University
Innopolis University
New York University Abu Dhabi
assistant
Question:
Which employer did Nikolaos Mavridis work for in Oct, 2013?

Context:
 Nikolaos Mavridis works for New York University Abu Dhabi from Jan, 2011 to Jan, 2013. 
 Nikolaos Mavridis works for National Centre of Scientific Research "DEMOKRITOS" from Jan, 2013 to Jan, 2016. 
 Nikolaos Mavridis works for Innopolis University from Jan, 2015 to Jan, 2017. 
 Nikolaos Mavridis works for United Arab Emirates University from Jan, 2007 to Jan, 2011.

Answer:
user
National Centre of Scientific Research "DEMOKRITOS"
assistant