Who is they?
Apple recently had to recall 1st generation IPods because they had a defect in their batteries.

A:
1st generation IPods

Who is they?
The zombies chased the survivors because they were tasty.

A:
the survivors

Who is he?
Prince Goro lectured Cano about the greatness of the emperor, because he was ignorant on realizing how powerful he really was.

A:
Cano