Problem: The sun was covered by a thick cloud all morning, but luckily, by the time the picnic started, *it* was out.
Are "it" and "The sun" the same?
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Answer: yes


Problem: The donkey wished a wart on its hind leg would disappear, and *it* did.
Are "it" and "wart" the same?
****
Answer: yes


Problem: Anna did a lot better than her good friend Lucy on the test because *she* had studied so hard.
Are "she" and "Anna" the same?
****
Answer:
yes