> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/emotivpro-builder/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/emotivpro-builder/building-an-experiment-in-builder/what-are-elements.md).
# What are elements?
Elements are the different media you can add to each phase of an experiment. They include:
* **Text** — Type and edit text
* **Images** — Upload an image file or select a previously uploaded image
* **Audio** — Upload an audio file or select a previously uploaded audio file
* **Video** — Upload an audio file or select a previously uploaded audio file
* **Questionnaires** — Type questions, choose the type of questions (e.g. multiple-choice or open text), input answers, and choose how they are displayed.
You can add as many elements as you like to a phase.
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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, and the optional `goal` query parameter:
```
GET https://emotiv.gitbook.io/emotivpro-builder/building-an-experiment-in-builder/what-are-elements.md?ask=&goal=
```
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