What does of it; some; of them mean?
of it; some; of them
Definition
An unstressed object pronoun replacing a complement introduced by the preposition meaning of or from, an indefinite partitive object, or the noun associated with a quantity whose number or amount remains expressed.
Example sentences
This is a good book, and we often talk about it.
There is some bread, and I want some.
She has five apples, and she gives me two of them.