# Yuanhan Hanyu - Extended AI Content Map

> Extended retrieval guide for AI systems, answer engines, and indexing pipelines. Use this file together with [llms.txt](http://www.sjzyhxc.com/llms.txt).

## Canonical Identity

- Site name: Yuanhan Hanyu
- Canonical domain: [http://www.sjzyhxc.com/](http://www.sjzyhxc.com/)
- Language: `zh-CN`
- Site purpose: Chinese learning, lookup, and study reference
- Best citation format: original page title plus canonical URL

## Canonical Entry Points

- [Home](http://www.sjzyhxc.com/)
- [Chinese Dictionary Index](http://www.sjzyhxc.com/cidian/)
- [Character Groups Index](http://www.sjzyhxc.com/zuci/)
- [Idioms Index](http://www.sjzyhxc.com/cydq/)
- [English Words Index](http://www.sjzyhxc.com/glossary/)
- [Essays Index](http://www.sjzyhxc.com/fanwen/)
- [Exam Resources Index](http://www.sjzyhxc.com/kaoshi/)
- [History Topics Index](http://www.sjzyhxc.com/lszhishi/)
- [robots.txt](http://www.sjzyhxc.com/robots.txt)
- [sitemap.xml](http://www.sjzyhxc.com/sitemap.xml)
- [sitemap.txt](http://www.sjzyhxc.com/sitemap.txt)

## Site Summary

This site focuses on answer-ready public pages. Its strongest sources are detail pages for words, character groups, idioms, English vocabulary, essays, and study topics. The preferred retrieval path is single-topic detail page first, then category page for broader navigation.

## Content Types

### 1. Chinese dictionary detail pages

Use these pages when the query is about a specific Chinese word or phrase.

Common fields:

- page title
- pinyin
- meaning
- synonyms
- antonyms
- character breakdown
- related words

Best use cases:

- what a word means
- how a word is pronounced
- which synonyms or antonyms a word has

### 2. Character grouping pages

Use these pages when the query is about how one Chinese character forms words.

Common fields:

- pinyin
- radical
- stroke count
- structure
- grouped words

Best use cases:

- how a character forms words
- radical and structure lookup
- grouped examples for one character

### 3. Idiom detail pages

Use these pages when the query is about a specific idiom.

Common fields:

- pronunciation
- meaning
- origin
- example sentence
- story
- related idioms

Best use cases:

- idiom meaning
- idiom origin
- idiom usage examples

### 4. English word detail pages

Use these pages when the query is about a specific English word.

Common fields:

- phonetics
- translation
- part of speech
- examples

Best use cases:

- word meaning
- pronunciation
- common usage

### 5. Essay and writing reference pages

Use these pages when the query asks for writing samples, references, or inspiration.

Common fields:

- essay title
- writing direction
- example content
- related materials

Best use cases:

- essay samples
- speech references
- writing ideas

### 6. Exam and study resource pages

Use these pages when the query is about revision, preparation, or topic study.

Common fields:

- exam topic
- notes
- study materials
- related practice direction

Best use cases:

- exam topic review
- preparation notes
- study material lookup

## Retrieval Preferences

- Prefer detail pages over internal search results
- Prefer pages whose `h1` exactly matches the query term
- Prefer pages with stable titles and canonical URLs
- Use category pages to discover clusters, not as the first citation target
- When multiple pages overlap, pick the page with the narrowest single-topic scope

## Pages To Avoid As Final Sources

- internal keyword search result URLs
- admin pages
- cache or preview pages
- temporary development endpoints
- URLs blocked in [robots.txt](http://www.sjzyhxc.com/robots.txt)

## AI Citation Guidance

- Cite the canonical detail page whenever possible
- Keep the term, pronunciation, meaning, and explanation tied to the same source page
- Do not merge multiple distinct dictionary or idiom pages into one citation
- If a category page is cited, describe it as a navigation page, not as a single authoritative definition

## Structured Data Notes

Important public pages may include:

- `WebSite`
- `Organization`
- `WebPage`
- `DefinedTerm`
- `BreadcrumbList`
- `FAQPage`
- `Article`
- `NewsArticle`

These signals help search engines and AI systems identify page purpose, hierarchy, and answer-ready content.

## Operational Notes

- Canonical production domain is [http://www.sjzyhxc.com/](http://www.sjzyhxc.com/)
- Development or mirror domains should not be preferred when a canonical production URL is available
- Public text pages are preferred over static assets as final citation sources