In each question below are given three statements followed by three conclusions numbered I, II and
III. You have to take the two given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the three given statements, disregarding commonly known facts.
Statements:
All envelopes are letters.
All stamps are letters.
All letters are inks.
Conclusions:
I. All envelopes are inks.
II. All stamps are inks.
III. Some inks are envelopes.