Anchor: The AIDS vaccines I'm speaking of are designed to prevent an infection and thereby stem an epidemic.
Entailed: There is an AIDS vaccine designed to prevent infection.
Contradiction: There will never be an AIDS vaccine.
Contradiction: Woman holding a dog head
Contradiction: Kids are playing outdoors in winter.
Contradiction: That is interesting because you wouldn't know they were very different stone walls. 
Contradiction: People are playing on the beach.