How should coreference resolution be handled for possessive pronouns?

Question

When dealing with coreference resolution, what is the correct way to handle a possessive pronoun followed by another noun? Consider:

Alice has a cousin called Bob.
Alice went to visit her cousin.

In the second sentence, I can see three potential ways to resolve her cousin:

1. her refers to Alice.
2. her refers to Alice and cousin refers to Bob.
3. her cousin refers to Bob.

In the literature I have found examples of both 1 and 3, so it is unclear which is correct.

Answer 1

1 and 3 are not mutually exclusive, and they are both correct. 2 is not possible, because "cousin" is a noun, not a NP, and only NPs refer, not nouns. Nouns predicate, they don't refer (unless they are also NPs).