Identify the types of content from the following list.
blog posts, videos, photographs, webinars
blog posts: textual content; videos: visual content; photographs: visual content; webinars: audio/video content.
Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Identify the types of content from the following list.

### Response:
blog posts: textual content; videos: visual content; photographs: visual content; webinars: audio/video content.