Due to business needs, a company wants to merge these seven departments of A, B, C, D, E, I, G  into H,L, K 3 subsidiaries
It is known that: (1) a department can only be merged into one subsidiary (2) if at least one of D and C is not merged into H company, then E and A are merged into H company: (3) if at least one of  A, I and G is not merged into K company, then E is merged into Lcompany and C is merged into K company
G and E were merged to K.