Draw a class diagram representing a book defined by the following statement: "A book is composed of a number of parts, which in turn are composed of a number of chapters. Chapters are composed of sections." Q2) Draw an object diagram representing the first 3 chapters of your textbook ("Software Engineering, " Sommerville, 9th Edition). Make sure that the object diagram you draw is consistent with the class diagram of the previous Exercise Q3) The following domain model captures some basic information about a kids' hockey league. In answering the following questions, state any assumptions that you make