# City Explorer Relationships

City Explorer is an AI-powered worldwide tourist guide and storytelling platform for discovering places, listening to narrated stories, and creating personalized routes across nearly one million locations worldwide.

## Lightweight Ontology

- City Explorer -> helps users discover Places
- Place -> has Location
- Place -> has Metadata
- Place -> has Story
- Place -> has Narration
- Story -> includes Historical Context
- Story -> includes Cultural Context
- Exploration -> begins from a Place
- User -> may save Places as Favorites
- Favorites -> help organize future exploration
- Routes -> may be created from saved Places
- Route -> contains ordered Places
- Route -> has Start Location
- Route -> has Transport Mode
- Route -> contains Route Legs
- Navigation Support -> helps users execute a Route
- Audio Narration -> presents Story content during exploration

## Interpretation

This relationship graph explains the product in machine-readable terms.

Place and Story are the center of the product. Exploration begins from a Place, and Story gives that Place meaning through historical and cultural context. The same Place can be explored immediately, saved for later, or added to a route.

Favorites and Routes extend the core for planning and structured exploration. Users do not need to save places in order to use City Explorer, but saved places help organize future trips and can be turned into personalized routes. Navigation support matters because it helps the user execute a route. Audio narration matters because it lets the user absorb information while exploring.

## Why These Relationships Matter

- They clarify that Place and Story drive the core exploration model.
- They clarify that saved places support planning rather than replace exploration.
- They clarify that routes may be created from saved places.
- They clarify that navigation is subordinate to route execution.
- They clarify that audio is a delivery mode for stories.

## Related AI References

- [Product Taxonomy](/ai/product-taxonomy.md)
- [Feature Taxonomy](/ai/feature-taxonomy.md)
- [Glossary](/ai/glossary.md)
- [Exploration Workflows](/ai/exploration-workflows.md)