Text: The site, from the third century b.c. , when Emperor Ashoka ordered stupas containing the Buddha's relics to be built, is on a 91-m (300-ft) hill on the Vindhya plateau.
Entailment: During the third century B.C., stupas were built to hold the Buddha's remains, on the orders of Emperor Ashoka.
Contradiction: The site dates from about the first century A.D. and is built on a plain.