> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/api/guides/common-concepts/understanding-the-query-language.md).

# Understanding the query language

The API model has a set of well-defined entities and relations that allow you to create a single-rooted tree graph query and specify constraints that must exist for any of the resulting nodes, such as results filtering.

For example, to query all assets of type Business Term and their respective domain and community, specify the following tree graph:

![graph](/files/fOkls7TB5LLXi0c1VT7s)


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# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.collibra.com/api/guides/common-concepts/understanding-the-query-language.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.