Anchor: Several people stand on a wooden raft on a body of water.
Entailed: the raft is on open water
Contradiction: the people have drowned
Contradiction: The Museu Gulbenkian is very small and houses very unremarkable collections.
Contradiction: There is a kid using a kitchen appliance.
Contradiction: The horses jogged calmly through the river. 
Contradiction: A person waves the flag.