Question: Piran, son of Viseh's body was washed with what solid, waxy, and grey or blackish flammable substance after he died? 
Sentence (from "Ambergris"): Ambergris ( or , Latin: "ambra grisea" , Old French: "ambre gris" ), "ambergrease" or "grey amber", is a solid, waxy, flammable substance of a dull grey or blackish colour, produced in the digestive system of sperm whales.
Relevant evidence: Yes