Text: In the circular Temple of Vesta, the sacred flame perpetuating the Roman state was tended by six Vestal Virgins who, from childhood, observed a 30-year vow of chastity on fear of being buried alive if they broke it.
Entailment: The sacred flame perpetuating the Roman state was tended by six Vestal Virgins, inside the circular Temple of Vesta.
Contradiction: In the circular Temple of Vesta, the sacred flame burned on its own, because it was eternal.