Question: What is the mouth of truth in rome?

context: The Mouth of Truth ( ) is a marble mask in Rome, Italy, which stands against the left wall of the portico of the Santa Maria in Cosmedin church, at the Piazza della Bocca della Verità, the site of the ancient Forum Boarium (the ancient cattle market). It attracts visitors who audaciously stick their hand in the mouth.
question: What type of object is the mouth of truth in rome?
short_answers: marble mask
mask
context: No context provided
question: Who is the mouth of truth in rome thought to represent?
short_answers: Ogenus
Ogen
Oceanus
context: nostrils and mouth are open. Historians aren't quite certain what the original purpose of the disc was. It was possibly used as a drain cover in the nearby Temple of Hercules Victor, which had an oculus—a round open space in the middle of the roof, similar to that of the Pantheon. Hence, it could rain inside. It is also thought that cattle merchants used it to drain the blood of cattle sacrificed to the god Hercules. In the thirteenth century the disc was probably removed from the temple and placed against the wall of the Santa Maria in Cosmedin. In the seventeenth century it eventually moved to its current location inside the portico of the church.
question: What do historians believe the mouth of truth in rome may have been used for in the past?
short_answers: drain cover in the nearby Temple of Hercules Victor
drain cover
drain the blood of cattle sacrificed to the god Hercules

Answer: The Mouth of Truth is a marble mask in Rome, Italy, that is thought to represent the sea titan god Oceanus. Historians believe in the past it was used for a drain cover in the nearby Temple of Hercules Victor or to drain the blood of cattle sacrificed to the god Hercules.