# Page Not Found

The URL `。` does not exist.

You might be looking for one of these pages:
- [Factored Cognition Primer](https://primer.ought.org/readme.md)
- [Factored Cognition](https://primer.ought.org/intro/factored-cognition.md)
- [Before We Start](https://primer.ought.org/intro/before-we-start.md)
- [Hello World](https://primer.ought.org/chapters/hello-world.md)
- [Question Answering](https://primer.ought.org/chapters/question-answering.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://primer.ought.org/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://primer.ought.org/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/readme.md`)
- Use `Accept: text/markdown` header for content negotiation