Existence of God
"Questions" are specific topics of discussion, whereas their corresponding "Articles" are further-specified facets of the parent question. For example, Part I, Question 2 ("The Existence of God") is divided into three articles: (1) "Whether the existence of God is self-evident?"; (2) "Whether it can be demonstrated that God exists?"; and (3) "Whether God exists?" Additionally, questions on a broader theme are grouped into Treatises, though the category of treatise is reported differently, depending on the source.