Statements:
All Curtain are Wall
Only a few Rod are Curtain
No Sticker is Rod
Conclusions:
I. No Sticker is Wall
II. All Sticker are Wall is a possibility
No Sticker is Rod (E) + Some Rod are Curtain (I) → Some Curtain are not Stickers (O*) + All Curtain are Wall (A) → No conclusion. Hence conclusion I does not follow. All Curtain are Wall (A) → Conversion → Some Wall are Curtain (I) + Some Curtain are not Stickers (O*) → Probable conclusion → All Sticker may be Wall (A). Hence conclusion II follows.