Statements: Some printers are carbons.
No carbon is a graphite.
No diamond is printer.
Conclusions:I. All printers are diamond.
II. Some diamonds are carbons.
No diamond is printer(E) ⇒ conversion ⇒ No printer is a diamond (E). Hence conclusion I does not follow. No diamond is printer (E) + Some printers are carbons (I) ⇒ Some carbons are not diamond (O*). Hence conclusion II does not follow. Alternate method: