* A specific character's role in the story? If so, please specify which character you're interested in. For example, you could ask about "the major role of Napoleon" or "the major role of Boxer".
* A specific theme or concept in the story? For example, you could ask about "the major role of revolution" or "the major role of propaganda" in Animal Farm.
* The major role of the story as a whole? For example, you could ask about "the major role of Animal Farm as a satire of the Russian Revolution".
Please provide more context so I can give you a more helpful answer!