Anchor: Three people giving a presentation before a crowd.
Entailed: The people are giving a speech.
Contradiction: The three people are at a rave.
Contradiction: People attending  a concert  sitting under a tent and getting wasted.
Contradiction: The Irish president must undergo an inauguration where something is used.
Contradiction: Motorcycles are racing.
Contradiction: According to research sterilization through radiation at lower doses does not harm nutrition.