IN: Which person is he?
The youth outran the old man because he was in shape.
OUT: The youth

IN: Which person is he?
John nicked Bill because he was gullible.
OUT: Bill

IN: Which person is he?
Peter Griffin often pokes fun at Chris, because he enjoys doing it.
OUT: Peter Griffin

IN: Which person is she?
Sheila made chicken noodle soup for her daughter since she knew it would help her get over her cold.
OUT:
Sheila