I want to know the answer to the following question:
The church of Santa Costanza is in what country?
All the background I'm provided with is that "In Rome, Nero and his architects used mosaics to cover some surfaces of walls and ceilings in the Domus Aurea, built 64 AD, and wall mosaics are also found at Pompeii and neighbouring sites.". Is that enough to answer the question?
Answer: yes