Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:

Some balls are spoons.

All stones are balls.

No ball is a pebble.

Conclusions:

I. Some balls are stones.

II. No spoon is a stone.

III. No stone is a pebble.

Both conclusions I and III follow.