CONTEXT: The sculpture rolled off the shelf because *it* wasn't anchored.

Multi-choice question: Do "the shelf" and "it" have the same meaning?
no

CONTEXT: The scientists are studying three species of fish that have recently been found living in the Indian Ocean. *They* began two years ago.

Multi-choice question: Do "The scientists" and "They" have the same meaning?
yes

CONTEXT: After a somewhat lengthy conversation, Nancy convinced the housekeeper that there was no immediate cause for alarm. *She* did not mention the incident at the Hamilton bus station, knowing it would only add to Mrs. Gruen’s uneasiness.

Multi-choice question: Do "Nancy" and "She" have the same meaning?
yes

CONTEXT: Emma did not pass the ball to Janie although *she* saw that she was open.

Multi-choice question: Do "Janie" and "she" have the same meaning?
no