describe the relation Member-Collectione1e2

The relation Member-Collection(e1,e2) represents that element e1 is a member of collection e2. It indicates that e1 is included in the set or group defined by e2. For example, if e1 is a specific book and e2 is a library, the relation Member-Collection(e1,e2) would mean that the book is part of the library's collection. The relation can also be used for other types of collections, such as databases, teams, or clubs. In general, the Member-Collection relation is a way of expressing the membership of an element in a larger group or set