In this question, three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follows/follow from the statements.

Statements:
Some spoons are black.
All black are crows.
No crow is a plate.

Conclusions:
I. Some black are spoons.
II. All crows are black.
III. No plate is a crow.