Amazon Comprehend is a natural language processing (NLP) service provided by Amazon Web Services (AWS). It leverages machine learning to extract valuable insights and connections from text documents. 

This component based on the official AWS C# SDK supports the following features

• Document Classification
• Entity Detection
• Detection of Personally Identifiable Information (PII)
• Sentiment Detection
• Key Phrase Extraction
• Part of Speech Extraction

Download the attached demo application and check the documentation page for further details.