Anchor: A man plays guitar along the side of a street.
Entailed: A man uses an instrument to make music.
Contradiction: A man reads from a book and lectures an audience inside a conference room.
Contradiction: The man is playing in the forest.
Contradiction: She and her group were offered a tour of their own and she accepted. 
Contradiction: That's a fair trade for two bags of salt.
Contradiction: an audience is watching other people