Text: The obelisk in the piazza's center, dating from the Egypt of Rameses II (13th century b.c. ), was brought here from the Circus Maximus and re-erected by Pope Sixtus V in 1589.
Entailment: The obelisk, from the time of the Egypt of Rameses II, was in the piazza's center before it was moved.
Contradiction: The obelisk was first built in 1589.