How one civilian convinces another

What to do. First restate the other person's position correctly. Then offer one concrete fact that does not fit their version. Do not accuse them of stupidity and do not demand blind faith.

How it sounds. You think number 6 is black because of the vote against number 4. But number 6 spoke about this even before the vote. Why is this vote a surprise to you?

Exercise. One learner defends number 6, and the second asks three clarifying questions without raising their voice.