instruction:
Indicate a noun phrase from given statement which mentions a pronoun.
question:
the scientists are studying three species of fish that have recently been found living in the indian ocean. they began two years ago.
answer:
they began two years ago.


question:
during a game of tag, ethan chased luke because he was "it".
answer:
he was "it".


question:
frank was upset with tom because the toaster he had sold him didn't work.
answer:

he had sold