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.

Let me give you an example: the user changed his password from grwqwu8jyc toÂ willow-towered canopy huntertropic wrestles as it was easy to remember.
The answer to this example can be: his, it
Here is why: In this statement, 'it' is the pronoun used for password, and 'his' is used for the user.

OK. solve this:
bob paid for charlie's college education. he is very generous.
Answer:
he