Anchor: A man in a blue shirt is performing maintenance on a window.
Entailed: A man is working.
Contradiction: A man is working on a floor board.
Contradiction: I don't think anyone has an idea what the main contributor is.
Contradiction: An old woman knits with yarn.
Contradiction: Normally you'd see ordinary citizens out there cleaning up the trash.
Contradiction: Since our launch, we have received thousand of emails.