Anchor: Power generators are a significant source of three key  sulfur dioxide (SO2), nitrogen oxide (NOx), and mercury (Hg).
Entailed: The power generators make a lot of sulfur dioxide.
Contradiction: The power generators are the only source for mercury.
Contradiction: The people are angry.
Contradiction: A man crouches
Contradiction: A couple stands by the food table.
Contradiction: The square is inside of a city