A large corporation classifies its many divisions by their performance in the preceding year. Let P = {divisions that made a profit}, L = {divisions that had an increase in labor costs}, and T = {divisions whose total revenue increased}.
1. {Divisions that had increases in labor costs or total revenue}
2. {Divisions that did not make a profit}
3. {Divisions that made a profit despite an increase in labor costs}
4. {Divisions that had an increase in labor costs and either were unprofitable or did not increase their total revenue}
5. {Profitable divisions with increases in labor costs and total revenue}
6. {Divisions that were unprofitable or did not have increases in either labor costs or total revenue}