x1 is/reflects/pertains to race/caste/societal(/social) classification x2 culture/status in aspect x3, of subtype/particular subcategory/group/tribe x4, by definition/standard/societal classification system x5
x1 is the aspect in which race/caste/social classification x2 relates to x1 from subtype/particular subcategory/group/tribe x4, by definition/standard/societal classification system x5
x1 is the classification system of race/caste x2 in aspect x3, of subtype/particular subcategory/group/tribe x4 which x5 reflects/pertains to/is a part of