Anchor: It's still modest in size, but it becomes full to the brim on summer weekends, when families head here for fresh air.
Entailed: Families come here on the weekends during the summer to get some fresh air. 
Contradiction: It is completely empty here throughout the summer weekends. 
Contradiction: A poet sits quietly under a tree.
Contradiction: It is not similar to an eight hour job. 
Contradiction: I guess we have the power to stop wars.
Contradiction: It was just a thought and not an attack on Bob's book.