The introduction opens with an anecdote about a 14th century Catalan person assigned female, but whose husband petitioned for annulment because she was anatomically incapable of having sex as a woman, due to atypical genitals, including a penis, a very small vaginal opening, and other anomalies. The account doesn’t include any follow-up or any personal testimony from the woman. The crux of the argument was that she could not be categorized as a woman because she could not perform sexually as a woman.