Why does a piece of bread start tasting sweeter after chewed for some time?

Explanation

### Step-by-Step Solution:

1. **Understanding the Composition of Bread**:
- Bread is primarily made from flour, which contains carbohydrates, specifically starch. Starch is a polysaccharide, meaning it is made up of long chains of glucose molecules.

2. **Role of Saliva**:
- When you chew bread, it mixes with saliva in your mouth. Saliva contains an enzyme called amylase, which is responsible for breaking down starches into simpler sugars.

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