Anchor: Ask about such discounts when booking.
Entailed: When booking, ask if there are any such discounts.
Contradiction: There is no need to ask about the discounts.
Contradiction: The girls are sleeping in their beds.
Contradiction: The field-based studies.
Contradiction: The hut was bright and cheery with several lit torches. 
Contradiction: Customers are advised to order flowers three days before departure.