instruction:
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.
question:
the city councilmen refused the demonstrators a permit because they advocated violence.
answer:
they


question:
john was doing research in the library when he heard a man humming and whistling. he was very annoying.
answer:
he


question:
sid explained his theory to mark but he couldn't convince him.
answer:
his, he, him