Instead they are just the set of events where an interaction between entities took place.

Relationships between entities are named; the name is called a Role.

Here it is a confrontation between two different entities, political and religious.

The game begins with a conversation between two unknown entities.

It depends on having cooperation between private and public entities.

Constraints are relationships between entities that make up a particular shape.

It was as if he hung suspended between two massive entities.

A relationship in an entity model normally represents an association between two entities.

This step identifies the detailed relationships between entities, events, and states of the world that cause a particular situation to be true.

Law enforcement in Mexico is divided between federal, state, and municipal entities.