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 spoons are plates.
Some plates are tumblers.

Conclusions:
I. No tumbler is a spoon.
II. No plate is a spoon.
III. Some tumblers are spoons.