Statement: All tables are sofas. All sofas are beds. All beds are mats. Conclusions: I. Some mats are sofas. II. Some beds are tables. III. Some mats are tables.

All sofas are beds + All beds are mats = A + A = A = All sofas are mats → conversion → Some mats are sofas (I). Hence I follows. All tables are sofas + All sofas are beds = A + A = A = All tables are beds → conversion → Some beds are tables(I). Hence II follows. All tables are beds + All beds are mats = A + A = A = All tables are mats → conversion → Some mats are tables (I). Hence III follows.