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 essays are poems.
Some poems are directors.
All directors are singers.
Conclusions:
I. Some directors are poems.
II. Some singers are essays.
III. Some singers are poems.