Directions for the Problems. Draw a conceptual

data model to model the scenario in each problem. Use the model constructs $($e$.$g$.,$ the

material on the E$-$R model and the enhanced E$-$R model$)$ from chapters $2$ and $3$ as

appropriate and follow the modeling conventions used in the example problems in the

online lessons. Do not use the modeling conventions shown in Figure $2-22$ of the Hoffer

textbook which illustrate a data model in Visio notation. Be sure to include all

appropriate completeness constraints, disjointness constraints, and subtype indicators in

your conceptual data models

Carlton Square Circus Academy $($CSCA$)$ offers classes on circus skills such as

juggling and unicycling. CSCA keeps track of the classes it offers as well as its

teachers and students. Attributes of class include ClassID, StartDate, EndDate,

StartTime, EndTime, ClassSize, and Fee. Attributes of teacher include

TeacherID, TeacherName, $($composed of FirstName, MiddleInitial, and

LastName$),$ PaymentPerClass, and CircusSkills. Many teachers have more than

one circus skill. Attributes of student include StudentID, StudentName

$($composed of FirstName, MiddleInitial, and LastName$),$ StudentAddress

$($composed of Street, City, State, and ZipCode$),$ DateOfBirth, and Age. Students

can take more than one class, but must take at least one class. Each class can

have multiple students, but must have at least one student. All classes are taught

by a single teacher. Teachers must teach at least one class and can teach more

than one class