(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). (5) Some doors are windows.
All windows are gardens. I + A => I-type of Conclusion "Some doors are gardens". Conclusion III is Converse of it.