This would be a "sentence"--something that contains a main clause, a subject and an action or linking verb, and makes sense on its own. It needs nothing else.
Basically it is to organize your thoughts. You would usually make a Topic Web before you do a research paper, or essay.
Hope this is the answer you were looking for and that it helps!! :)
A popular mideval play based biblical stories or the the lives of the saints
Girl i have no idea... but go to oogle on ur phone and look up example of linking verbs that should help