sentences:  Okihiro is the originator of "social formation theory," which he defines as the forms and processes of power in society to oppress and exploit.By forms, he means the discourses and practices of race, gender, sexuality, class, and nation, and by processes, he refers to the articulations and intersections of those social categories.Power is agency, while oppression is the restriction of agency, and exploitation, the expropriation of land and labor.