Indicate all the pronouns (they, them, you, he, his, her, you, it, etc.) present in the given sentence. If there are multiple such pronouns in a sentence, then list them in the order of their first appearance in the given sentence. If a pronoun appears multiple times in a sentence, list it only once.

Example Input: although they ran at about the same speed, sue beat sally because she had such a bad start.
Example Output: they, she

Example Input: the firemen arrived after the police because they were coming from so far away.
Example Output: they

Example Input: the sack of potatoes had been placed above the bag of flour, so it had to be moved first.
Example Output:
it