Anchor: Additionally, some synergies have been observed between methylmercury and lake acidity - the more acidic, the greater the mercury concentration.
Entailed: Some synergies exist between methylmercury and lake acidity.
Contradiction:  No synergies exist between methylmercury and lake acidity.
Contradiction: A guy wearing baggy  jeans and a sweatshirt crosses the street.
Contradiction: A man is at a restaurant.
Contradiction: There are no wood carvings or tomb figures to find.
Contradiction: A person dressed in orange is laying on a wall.