Some statements are given, followed by some conclusions. Consider the statements to be true even if they seem to be at variance from commonly known facts. Decide which of the given conclusions follow from the given statements.
Statements:
Some rings are phones.
Some phones are computers.
Some computers are stations.
Conclusions:
I. Some stations are rings.
II. Some phones are stations.
III. Some computers are rings.
IV. All rings are stations.