Anchor: A group of people gathered for a celebration.
Entailed: There is an occasion to celebrate.
Contradiction: A group of people are working in an office.
Contradiction: The Piazza della Republica is not particularly popular with tourists, because it lacks shops or eateries.
Contradiction: A girld is flexible
Contradiction: A person is parachuting in the pouring rain.
Contradiction: There are is more than one water-based activity to choose from.