You plan to develop a language model by using Azure AI Language to answer questions.

You need to decide whether to use the question answering service or the Language Understanding service.

What are two features of the question answering service? Each correct answer presents a complete solution.

Select all answers that apply.

Entities are extracted from user input.

The service uses natural language understanding to interpret the input.

User input can trigger an action.

User input is matched to an intent.

User input is matched to items in a knowledge base.