Welcome to the ODK forum, @Solcastel ! We're glad you're here. When you get a chance, please introduce yourself here. I'd also encourage you to add a real picture as your avatar because it helps build community!
In the relevant
column for question 3 you would put something similar to:
( ${q1} = 'Ukrainian' or ${q1} = 'Armenian' or ${q1} = 'Other' ) and ${q2_name} = 'Russian'
Question 3 will only be asked if the relevant statement evaluates to true
.
You will need to replace "q1" and "q2" with the name values for those questions on your survey
sheet. And the answers in the quotes should match the name values for those options on your choices
sheet.