Draw a class diagram based on the following textual description of university registration system: A course has a name and a code. Some courses have one or more prerequisite. No course can have more than 2 prerequisites. Courses have credit hours and can be either have letter grade or pass/fail. A course has a number of sections. A section contains details on the timings, instructor, and location. An instructor has a name, ID, contact email, and the department he/she belongs to. An instructor teaches one to four sections and has a weekly schedule based on the sections he/she teaches. A student has a name, ID, major, and contact email. A student can add or drop courses by enrolling in a section and has a weekly schedule based on the sections he/she is enrolled in. An undergraduate student has a senior project and a graduate student has a thesis. A thesis has pass/fail grade. A student also has transcript which basically shows the courses he/she has finished with the grades and the courses he/she is currently taking. It should be possible to view the list of students enrolled in a given section.

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