Anchor: One important and major advantage of advance reservations is that the visitor will be met at the airport straight away by a representative of the houseboat-owner it's not easy for newcomers to find their way among the boats.
Entailed: Visitors who reserve in advance will be met at the airport by a spokesperson of the houseboat owner. 
Contradiction: There is no advantage to reserving in advance. 
Contradiction: Hungerford stated that the purpose of the conference was to achieve unanimity.
Contradiction: Christian pilgrims were attacked in Jerusalem by Seljuk Turks in 1071.
Contradiction: The two women are at opposite ends of the block.
Contradiction: A man is working outside.