certificate_code,course,department_code,faculty_code,level,mandatory
CRT1,CRS1,DEP1,FAC1,200,1
CRT1,CRS1,DEP1,FAC1,300,nonsense
CRT1,CRS1,DEP1,FAC1,400,<IGNORE>
CRT1,CRS1,DEP1,FAC1,100,
CRT2,CRS1,DEP1,FAC1,100,