Steps nearby lead underground to the Lapis Niger, a black marble pavement laid by Julius Caesar over the presumed grave of Romulus, the city's founder.
Julius Caesar did not lay a black marble pavement.
mnli hypothesis: Julius Caesar did not lay a black marble pavement. premise: Steps nearby lead underground to the Lapis Niger, a black marble pavement laid by Julius Caesar over the presumed grave of Romulus, the city's founder.