Question:
Who was the head coach of the team FC Flora Tallinn in May, 2017?

Context:
 Arno Pijpers is the head coach of FC Flora Tallinn from Jan, 2017 to Dec, 2017. 
 Marko Lelov is the head coach of FC Flora Tallinn from Oct, 2012 to Jul, 2013. 
 Jürgen Henn is the head coach of FC Flora Tallinn from Aug, 2018 to Dec, 2022.

Answer:
Arno Pijpers