Statements: Some boys are men. No man is black. Conclusions: I. Some boys are not black. II. Some men are boys.

First Premise is Particular Affirmative (I–type).
Second Premise is Universal Negative (E–type).
Some boys are men. ↔ No men is black.
I + E ⇒ O – type of Conclusion "Some boys are not black."
This is Conclusion I.
Conclusion II is the Converse of the first Premise.
Thus, both the Conclusions follow.