CONTEXT: Sid explained his theory to Mark but *he* couldn't convince him.

Multi-choice question: Do "Sid" and "he" have the same meaning?
yes

CONTEXT: James asked Robert for a favor but *he* was refused.

Multi-choice question: Do "Robert" and "he" have the same meaning?
no

CONTEXT: The city councilmen refused the demonstrators a permit because *they* advocated violence.

Multi-choice question: Do "the demonstrators" and "they" have the same meaning?
yes

CONTEXT: Fred and Alice had very warm down coats , but *they* were not enough for the cold in Alaska.

Multi-choice question: Do "coats" and "they" have the same meaning?
yes