Anchor: If they had survived, there would be no trade in any case.
Entailed: There wouldn't be a trade if they had lived.
Contradiction: Even if they'd survived, the trade would have happened.
Contradiction: There are so many men that prefer to stay home while the women bring home the money.
Contradiction: A group of kids sitting on long white tables and white chairs writing notes to each other on their surface.
Contradiction: Treat yourself and do not worry about the cost.
Contradiction: Why does he make an effort to be seen?