In the Systemic Functional Linguistics (SFL) Appraisal system, both **Valuation** and **Reaction** are subcategories of **Appreciation**, which deals with the evaluation of things, processes, and phenomena. However, they focus on different aspects of how something is evaluated.
### **Valuation vs. Reaction in SFL Appraisal**
1. **Valuation**:
- **Focus**: Valuation concerns the significance, worth, or value of something. It evaluates how important, meaningful, or valuable an object, event, or phenomenon is perceived to be.