Q: .

Fred is the only man still alive who remembers my great-grandfather . *He* is a remarkable man.

Do "He" and "my great-grandfather" mean the same thing?
A: no
Q: .

Lionel is holding captive a scientist, Dr. Vardi , who has invented a device that turns animals invisible; Lionel plans to use it on Geoffrey and send *him* to steal nuclear material from an army vault.

Do "him" and "Geoffrey" mean the same thing?
A: yes
Q: .

When Tommy dropped his ice cream, Timmy giggled, so father gave *him* a sympathetic look.

Do "him" and "Tommy" mean the same thing?
A:
yes