Thesis: This thesis should identify your subject, enumerate the categories you will discuss, and in the final draft, show readers the relationships of your categories to one another and to the subject as a whole. In addition, your thesis should introduce the idea why your categories are significant or how the categories establish value (Kirszner and Mandell).
Body: Treat the categories one by one in the order in which your introduction presents them.
Explain each subgroup: Use examples or narrative to support.
Explain why/how the subgroup is unique: Demonstrate how the subgroup is distinct
Explains traits: Support with examples or narrative (Vandermey, et al., 226)
Subgroup 1: Trait 1, Trait 2, Trait 3
Subgroup 2: Trait 1, Trait 2, Trait 3
Subgroup 3: Trait 1, Trait 2, Trait 3