"Text [submission:values:field_set_key:field_key:nolabel] More text"
** nolabel is an optional, indicate "Do not show Label"
=> Purchase Request - [submission:values:item_information:item_title:nolabel]
There are several futures that can help to get the information. The best place to get token source is click "Browse available Tokens". Here are some examples.
Q: By default, Yale user can log into Drupal with their netid, Drupal will create an account with some basic from Yale Directory, so if a user log into a form, we can get user's information as default value with the following token: