Two 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:
All equipment are screw-drivers.
All machines are equipment.
Conclusions:
I. Some screw-drivers are equipment.
II. Some screw-drivers are machines.
III. All equipment are machines.