Anchor: It may just have been that we were too early.
Entailed: We were possibly too early even though we originally thought it was the correct start time. 
Contradiction: We arrived to the location at the designated start time and felt like we were right on time because everythig appeared as it should be. 
Contradiction: The door groaned and squeaked loudly as the secretary closed it behind him.
Contradiction: a girl outside
Contradiction: The boy is swimming in the water.
Contradiction: There is a girl.