**YouTube** is an American [online video-sharing](https://en.wikipedia.org/wiki/Video_hosting_service "Video hosting service") [platform](https://en.wikipedia.org/wiki/Web_platform "Web platform") headquartered in [San Bruno, California](https://en.wikipedia.org/wiki/San_Bruno,_California "San Bruno, California")

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The Expert System package provides natural language understanding functionalities. 

It allows data extraction from various natural language sources including text and pdf files.

Package consists of 3 activities:

**Annotate Text** - Annotates a text input.

**Annotate File -** Annotates a file input.

**Annotate CogX -** Annotates a CogX input.

[Click here for documentation on the activities.](https://docs.uipath.com/integrations/docs/expert-system)

This is a beta version of the UiPath.ExpertSystem.Activities package, some features might be changed in the future.

The Expert System package provides natural language understanding functionalities.