FAQ entry on genericity of station names

README.md

@@ -145,6 +145,9 @@ A: No, this challenge is focussed on Java only. Feel free to inofficially share
 _Q: Why_ 1️⃣🐝🏎️ _?_\
 A: It's the abbreviation of the project name: **One** **B**illion **R**ow **C**hallenge.
 
+_Q: Can I make assumptions on the names of the weather stations showing up in the data set?_\
+A: No, while only a fixed set of station names is used by the data set generator, any solution should work with arbitrary UTF-8 station names.
+
 ## License
 
 This code base is available under the Apache License, version 2.