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The $expand question option can bespecified using the names of the selected entity sets as navigation propertynames. If a selected entity set just isn't expanded, it MUST be represented usingthe read URL of the associated entity as a navigation hyperlink in the complicated typeinstance. The basic guidelines for addressing a group (of entities), asingle entity inside a set, a singleton, as well as a property of anentity are coated within the resourcePath syntax rulein [OData-ABNF]. The signatures of these methods match these of the correspondingstr an