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 lamps are clocks.
All clocks are books.
Some books are stones.
Conclusions:
I. Some lamps are stones.
II. Some books are lamps.
III. Some clocks are stones.