Anchor: A construction crew person pulls on a large coil of red line in the subways of London.
Entailed: The people are working on a subway.
Contradiction: The people are sleeping.
Contradiction: A man is standing in a museum.
Contradiction: My problem was solved when I read this paragraph. 
Contradiction: Boy Scouts are camping in the dry desert.
Contradiction: Explanations that assume the effects of hormones are static are being dismantled.