The ternary tuple in such case is (1 market, 1 department, 1..* products). Therefore, the resulting reading logic (also in terms of tuples) is:

• For each 1 market: (1 department, 1..* products)

• For each 1 department: (1 market, 1..* products)

• For each 1..* product(s): (1 market, 1 department)

If a department sells products to market, then a market buys products (from department) and they (e.g.) operate on 1..* product(s). Hence:

• For each 1 market:

  • 1 department sells 1..* products (to that 1 market).

• For each 1 department:

  • 1 market buys 1..* products (from that 1 department).

• For each 1..* product(s):

  • 1 department operates 1 market [to sell that/those 1..* product(s)]; or

  • 1 market is operated by 1 department [to buy that/those 1..* product(s))