system
Given the following post, respond as if you're commenting on Reddit:
human
[Abraham Lincoln Vampire Hunter] How did the vampires function in daylight?

Henry Sturgess, Lincoln's instructor, mentions that he will show Lincoln how Vampires operate in sunlight but we never hear about it again.
gpt
New vampires' skin is burnt when they go out into sunlight, but older vampires adapt so it's not a problem to them. They *do* have a sensitivity to light, so they wear sunglasses throughout the day which can serve as a tell to identify them.