Text: In 1846, during the course of an unsavory palace intrigue involving an unsolved murder, meddling by the queen, and the massacre of some 100 high-ranking court figures who had been lured to a palace courtyard, the instigator of these events became the power behind the throne.
Entailment: The person who caused these events ended up becoming the power behind the throne.
Contradiction: All court figures survived the attempted massacre by convincing the assassins to spare them.