Indicate a noun phrase from given statement which mentions a pronoun.

Ex Input:
we had hoped to place copies of our newsletter on all the chairs in the auditorium, but there were simply not enough of them .

Ex Output:
not enough of them

Ex Input:
the foxes are getting in at night and attacking the chickens. they have gotten very nervous.

Ex Output:
they have gotten very nervous.

Ex Input:
the actress used to be named terpsichore, but she changed it to tina a few years ago, because she figured it was too hard to pronounce.

Ex Output:
it was too hard