Anchor: Its age is uncertain, but it seems to have been built in its present form around 1349, at the highest point of the city walls.
Entailed: It seems that the city walls indicate that it was built in 1349.
Contradiction: The age is known precisely because of the city walls.
Contradiction: Balbina said nothing in response.
Contradiction: Some small shops open at the weekend during tourist season.
Contradiction: Some girls are in school.
Contradiction: When you start talking about Guam, you have to realize it's far away.