IN: Which person is he?
Scrooge was moved by the appearance of Timmy since he has an effect on people due to him being crippled and loving.
OUT: Timmy

IN: Which person is he?
Tom likes John because he has a cool name.
OUT: John

IN: Which person is they?
Stark Industries produces the best technology for the military because they have a number of brilliant scientists.
OUT: Stark Industries

IN: Which person is she?
Sally kicked Mary and she apologized.
OUT:
Sally