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 follow(s) from the statements.

Statements:

Some cubs are trucks.

All trucks are lanterns.

No lanterns are bricks.

Conclusions:

I. Some cubs are lanterns.

II. Some trucks are not bricks.

III. All cubs are trucks.