Anchor: group of people walking down the street greeting the crowd.
Entailed: A group of people are walking down the street, greeting the crowd.
Contradiction: A group of people are throwing tomatoes at the crowd.
Contradiction: a man is watching someone else preform a trick so he can learn
Contradiction: Four men sit in front of books.
Contradiction: There are four cats.
Contradiction: A young boy is outdoors.