Draw the E$-$R diagram on the paper with oval rectangle or line please!

A university registrar's office maintains data about the following information: course, including number, title, credits, syllabus, and prerequisites;

course offering, including course number, year, semester, section number,

instructor$($s$),$ timings, and classroom; $($course offering depends on the course that university provided$)$;

student, including student$-$id$,$ name, and program;

instructor, including identification number, name, department, and title;

Further, the enrollment of students in courses and grades awarded to students in each course they are enrolled for must be appropriately modeled;

Each instructor must belong to exactly one department;

Each department includes dept$-$id$,$ name, telephone number;

Each department must have at least one instructor.

Construct an E$-$R diagram for the registrar's office. Document all assumptions that you make about the cardinality constraints and participation constraints.