“Donkey anaphora” refers to the relation between pronouns such as it and he and their antecedents in sentences like those in (1). 

1. a. Every farmer who ons a donkey beats it.

    b. If a farmer owns a donkey, he beats is.

These pronouns do not have a referential pronominal interpretation like that of it in (2), where it refers to the cat mentioned in the previous sentence. 

2. John owns a cat. Mary likes it very much.

In the case of (1), it does no…