Which of these data sources is an example of semi-structured data?1 pointSocial media feedsNetwork and web logsEmailsDocuments

The example of semi-structured data among the options provided is "Emails".

Here's why:

1. Social media feeds: These are typically unstructured data. They contain free-form text, images, videos, and other types of content that do not fit neatly into a database.

2. Network and web logs: These are typically structured data. They are usually stored in a structured format, such as a database, and have a clear, predefined data model.

3. Emails: These are semi-structured data. While they have some structured elements, such as the sender, recipient, and timestamp, they also contain unstructured elements, such as the body of the email.

4. Documents: These are typically unstructured data. They contain free-form text that does not fit neatly into a database.