FoodWiki: Ontology-Driven Mobile Safe Food Consumption System

Table 2

Physical activity level class includes two subclasses: physical activity level range and physical activity level value, with their values for individuals.

Main classes	Subclasses of the physical activity level	Values (individuals)	Relationships
Thing → person → physical activity level	Physical activity level range	(i) 1-2,; (ii) 3-4,; (iii) 5-6,; (iv) 7-8,; (v) 9-10	(i) 1-2 → very light,; (ii) 3-4 → light,; (iii) 5-6 → activity medium,; (iv) 7-8 → heavy,; (v) 9-10 → very heavy
	Physical activity level value	(i) Very light,; (ii) light,; (iii) activity medium,; (iv) heavy,; (v) very heavy