Definition: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : The Situla of the Pania is an ivory situla or pyxis from the end of the seventh century BC, found in the Tomb of the Pania in Chiusi and conserved in the Museo archeologico nazionale di Firenze.
Question : What is the surface of Situla of the Pania made of?
Output:
ivory