Ключевые слова: abstract, air, allergen, allergy, app, black, business, cat, dairy, design, disease, dog, dust, flower, food, free, fur, gluten, glyph, health, human, icon, illustration, infographics, insect, internet, isolated, lactose, line, logo, medical, medicine, milk, nut, outline, pictogram, plant, pollen, rhinitis, set, sign, symbol, technology, thin, treatment, web, wheat, white,