As discussed in the videos and the reading material, data is differentiated based on its structure – whether it has a well-defined structure, can be stored in well-defined schemas, and whether it can be represented as rows and columns. Here is a list of different types of data, based on their structure. Select three that are examples of unstructured data.

Tweets are an example of unstructured data. Tweets are user-generated and do not follow any particular format, sequence, or semantics.

Video files are an example of unstructured data. The content of a video file does not have a defined structure.

Facebook posts are an example of unstructured data. Posts are user-generated and do not follow any particular format, sequence, or semantics.