Those are books that need to be returned to the library what is the antecedent of the pronoun those

Question:

What is the antecedent of the pronoun those?

Sentence: Those are books that need to be returned to the library

Books

Pronouns are used to replace nouns with more general terms that don't describe a specific person or place. The antecedent of a pronoun is the word that the pronoun replaces.

In the case of this sentence, the pronoun those replaces the word books, therefore the antecedent of the pronoun those is books.

1.the hosts on two opposing mountains stood,  

2.thick as the foliage of the waving wood;  

3.between them an extensive valley lay,  

4.o'er which the gleaming armour pour'd the day,  

5.when from the camp of the philistine foes,

6. dreadful to view, a mighty warrior rose; in the dire deeds of bleeding battle skill'd,

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.