[{"ID":1,"Name":"User","Description":"Users of the system"},{"ID":2,"Name":"Class","Description":"Classes of instruction"},{"ID":4,"Name":"UserClass","Description":"Users and Classes"},{"ID":5,"Name":"Event","Description":"Events"},{"ID":6,"Name":"ClassEvent","Description":"Classes and Events"},{"ID":7,"Name":"UserClassEvent","Description":"Users, classes and events"},{"ID":8,"Name":"Grades","Description":"Grades and scores"}]