Enchance model for better response

[deepraj21]

Describe the enhancement
Enhance the model architecture using various ways such as :

• prompting stratergies
• mapping values
• semantic layers

To Reproduce
Steps to reproduce the behavior:

1. Go to 'server/api/handlers/query/querymodel'

Usefull resources link:

• Prompting strategies: Advanced prompt engineering techniques.
• Mapping values: Techniques for mapping values from questions to database.
• Semantic layer: Techniques for implementing semantic layers.