Statement:
Some doors are handles. All handles are pins. Some pins are threats. All threats are clothes.
Conclusions:
I. Some cloths are pins.
II. Some pins are doors.
III. Some clothes are handles.
IV. Some clothes are doors.

Some pins are threats + All threats are clothes = I + A = I = Some pins are clothes ? conversion ? Some clothes are pins (I) Hence I follows. Some doors are handles + All handles are pins = I + A = I = Some doors are pins ? conversion ? Some pins are doors (I) Hence II follows. All handles are pins + Some pins are clothes = I + A = No conclusion Hence III does not follow. Nor does IV follow consequently.