2. Drinks: tea, water, milk, milk tea, mineral spring, coffee, sprite, cola, etc. Sound category: DuDu, Kaka, Duoduo, etc. Foods: peanuts, melon seeds, popcorn, sugar, fruit, walnuts, etc. Shapes: rice balls, snow balls, snowflakes, rice, fried dough sticks, hairballs, briquettes, balls, meatballs, etc. Taste category: smelly, fragrant and so on.