Anchor: Bad junk food from vending machines is all that's available at the summit, so it's best to bring your own supplies and, above all, a thermos of hot tea or coffee.
Entailed: Because there is a poor selection of food at the summit, it's a good idea to bring along your own supply of food and hot drinks. 
Contradiction: There is a vast selection of restaurants and cafes at the summit. 
Contradiction: Two men are sitting silently.
Contradiction: A person is leaving a portable toilet.
Contradiction: The boy is sitting quietly on the floor.
Contradiction: We are currently looking at ways that the visa function can be strengthened.