The conversation between human and AI assistant.
Why can't we use "her" instead of "hers", in the sentence "i prefer your help to hers"?
Okay, but can "her" be used in similar sentences?
No, "her" cannot be used in the same context as "hers" in that sentence because they serve different grammatical functions. "Her" can only be used to indicate the female object of a verb or preposition, while "hers" is a possessive form of "she".