I'm wondering how to describe, or add extra information to a Entity Reference relationship between two content types.
I have 'event' and 'people' content types. An event can have many people, and each person can be an either an organizer, presenter, facilitator, etc.
How can I model this relationship? Do I need to have an Entity Reference field for each type of relationship, or can I add the type of relationship as a parameter of a single Entity Reference?