original question: Which character has possessed the item that is made of the same material as [One Ring]?
answer: elrond
answer type: Theater Character.
auxiliary information: The One Ring is an artefact that appears as the central plot element in J. R. R. Tolkien's The Lord of the Rings. It is described in an earlier story, The Hobbit, as a magic ring of invisibility. In the sequel, The Lord of the Rings, Tolkien ascribes to the Ring a darker character, with malevolent power going far beyond conferring invisibility: it was created by Sauron the Dark Lord as part of his design to win domination over Middle-earth. The Lord of the Rings concerns the quest to destroy the Ring to keep Sauron from fulfilling his design.
What is the name of the character who possessed the item that is made of the same material as [One Ring]?