Anchor: A hiker with a backpack wades in a river.
Entailed: A hiker wades in a river.
Contradiction: A dogs with a backpack wades in a river.
Contradiction: I wanted the spoons to begin with.  
Contradiction: A person is sitting on a train.
Contradiction: It is recommended to be carefree and not worry.
Contradiction: Glendalough is a sacred place in the Wicklow Mountains that visitors are encouraged to see.