(i) All windows are gardens →Universal Affirmative (A-type). (ii) Some buses are doors → Particular Affirmative (I- type.) (iii) No wall is brick → Universal Negative (E-type) (iv) Some walls are not bricks → Particular Negative (O- type). (3) All lanterns are walls
No wall is brick A + E => E-type of Conclusion "No lantern is brick" Conclusion I and III form complementary pair. Therefore, either I or III follows.