Think of the least relational data you can come up with.
That data, and each item in it, has explicit and implicit relationships.
If it's a list of items, then the items are explicitly related to each other by nature of being in the same list. A list is a type of relationship.
If you have an app that stores random items which are each completely unrelated to each other... they are all related to the app.
If your data has fields, each item in each field is related to the whole.