What type of data is not defined and does not follow a specified format and is typically free-form text such as emails, twitter tweets, and text messages?

Unstructured data

Explanation:

 The unstructured data are not properly defined with the specific format and it is also typically does not have a pre-defined structure and free from all the text format like text messages, twitter tweets etc.

Unstructured data does not contain any type of specific data format and it also include the text and some multimedia content. like audios ,images and text messages. The unstructured data are most written without any structure and also using short forms language to make the data short and precise.

answer; availability;

answer6-9 screws;