You will see a sentence and a given pronoun. Answer with the word in the sentence to which the pronoun is referring.

Example Input: text: the drain is clogged with hair. it has to be removed.; pronoun: it
Example Output: the hair

Example Input: text: the drain is clogged with hair. it has to be cleaned.; pronoun: it
Example Output: the drain

Example Input: text: the man couldn't lift his son because he was so heavy.; pronoun: he
Example Output:
the son