Statements: Some books are novels.
Some books are eraser.
No eraser is a pencil.
Conclusions: I. All books are novels.
II. All books may be novels.
Some books are novels (I) ⇒I.I ⇒ No conclusion. Hence, conclusion I does not follow. Some books are novels (I) ⇒ Probable conclusion ⇒ All books may be novels (A). Hence, conclusion II follows.