i need ER digram and Crows Foot Notation

Task 1: Construct an E-R diagram for the following system : A university registrar's office maintains the registration's system data considering the following: 1. Courses: including (Number, Title, Credit Hours, Syllabus, and Prerequisites, I 2. Sections: including Course Number, Year, Semester, Section Number, Instructor(s), Timings, and Classroom) 3. Students: including (Student id, Name, and Program) 4. Instructors: including (Identification number, Name, Department, and Title). 5. The students' enrollment within courses and grades awarded for each student in each course