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 onclusions logically follow(s) from the statements.

Statement :
All backpacks are suitcase.
All suitcases are trolley.
Some Backpacks are Luggage.

Conclusions:
(I) Some Suitcases are Luggage.
(II) Some Backpacks are Trolley.
(III) All Trolleys are Luggage.