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

[Q]: text: the scientists are studying three species of fish that have recently been found living in the indian ocean. they began two years ago.; pronoun: they
[A]: the scientists


[Q]: text: sid explained his theory to mark but he couldn't understand him.; pronoun: he
[A]: mark


[Q]: text: thomson visited cooper's grave in 1765. at that date he had been travelling for five years.; pronoun: he
[A]:
thomson