Problem: When Mr. Bond , the veterinarian, came to look at the black horse that lay groaning on the grass, he felt him all over, and shook *his* head; one of his legs was broken.
Are "his" and "Mr. Bond" the same?
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Answer: yes


Problem: I was trying to open the lock with the key , but someone had filled the keyhole with chewing gum, and I couldn't get *it* out.
Are "it" and "the key" the same?
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Answer: no


Problem: Sir Clifford wants me to find him a new groom , about twenty or twenty-one, who knows his business. His old coachman is getting feeble, and he wants a man to work with him and get into *his* ways, who would be able, when the old man was pensioned off, to step into his place.
Are "his" and "Sir Clifford" the same?
****
Answer:
no