Problem: The mothers of Arthur and Celeste have come to the town to fetch them. They are very happy to have them back, but they scold *them* just the same because they ran away.
Are "them" and "Arthur and Celeste" the same?
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Answer: yes

Problem: Our mistress hired a room for my crippled sister Nelly , and she gave her knitting and needlework when she was able to do it, and when she was ill *she* sent her dinners and many nice comfortable things and was like a mother to her.
Are "she" and "Nelly" the same?
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Answer: no

Problem: The foxes are getting in at night and attacking the chickens . *They* have gotten very nervous.
Are "They" and "the chickens" the same?
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Answer:
yes