Attribute ContainsTarget

In section 7.1.5 Attribute ContainsTarget  of [OData-Part3]  the semantics is unlclear.
The following wording is used:

If the value assigned to the ContainsTarget attribute is true, entities of the entity type that specifies the navigation property contain the entities referenced by the navigation property.

What does "contain" mean? Does it impose any additional restriction?


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С уважением, Василий Кудрявцев