Systems of classification and nomenclature also vary. Taxonomic studies continue to resolve the classification and systematics of ants. These regional structures derive from the Australian Standard Geographical Classification (AGSC). Diphenhydramine is category B in the FDA Classification of Drug Safety During Pregnancy. This includes legal change of gender classification. These categorizations formalized in the Vienna classification of the disease. The left brain is the locus of analysis, classification, and rationality. This is in part related to legal liability of the classification society. This requires information to be assigned a security classification. Secondary education covers two phases on the International Standard Classification of Education scale. The general outline for the TNM classification is below. These two systems of classification are often combined. There are similarities between the classification approaches. They don't necessarily perform better than generative models at classification and regression tasks. Research is ongoing to simplify the proof of this classification.