A course can have many sections and each section is associated with one course; it's best to represent the semester as two attributes namely semster domain (Autumn, Winter and Spring) and Year.
Inkambo ungaba izingxenye eziningi kanye nesigaba ngasinye lihlotshaniswa course eyodwa; kungcono ukuba amelele semester njengoba izimfanelo ezimbili okuyilezi domain semster (ekwindla, ebusika kanye Spring) kanye Year.