Anchor: A Group of cyclists riding up a street with a crowd cheering them on.
Entailed: There is a group of people riding bikes outdoors.
Contradiction: A group of people in cars are racing down the street at breakneck speeds.
Contradiction: The woman is handing out books.
Contradiction: I don't think so. 
Contradiction: It sounds like she was really aggressive.
Contradiction: Crawfish and beer is a great dinner party for college kids.