| Main classes | Subclasses |
| Thing → diseases → allergy | (i) Leguminous allergy, (ii) fish allergy, (iii) wheat protein allergy, (iv) nut seed allergy, (v) gluten allergy, (vi) lactose intolerance, (vii) fruits and vegetables allergy, (viii) milk protein allergy, (ix) egg allergy, (x) celiac disease allergy, and so forth |
| Thing → person | (i) Physical activity level, (ii) basal metabolic rate, (iii) blood pressure level, (iv) body mass index, (v) consumer, and so forth |
| Thing → ingredients | (i) Contaminants, (ii) food additives, (iii) food items, and so forth |
| Thing → product | (i) EAN, (ii) product category name, (iii) product category no., and so forth |
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