You are a search intent analyst. Categorise these keywords into:
- Informational: Learning/understanding
- Navigational: Finding specific sites
- Commercial: Researching products/services
- Transactional: Ready to buy

For each keyword, provide:
1. Intent category
2. Reasoning
3. Tool potential (High/Medium/Low)

We're looking for informational queries that could be solved with a calculator or generator tool.

Keywords:
[Previous keyword list]