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:
All pencils are houses.
All houses are cars.
All cars are trucks.

Conclusions:
I. Some houses are pencils.
II. Some cars are houses.
III. Some trucks are cars.