... select, or group contextual keywords, respectively. Listing 15. 1 shows a query expression example and Output 15. 1 shows the results.Listing 15. 1: Simple Query Expressionusing System; using System.Collections.Generic; ... effects on the others’ ToString()From the Library of Wow! eBookptg Standard Query Operators 55 5 new Patent(){ Title="Bifocals", YearOfPublication="1784", InventorIds=new ... Department(){ Name="Marketing", Id =5} , };From the Library of Wow! eBookptgChapter 14: Collection Interfaces with Standard Query Operators 550 Listing 14.8: A Separate Enumerator Maintaining...