Infer the meaning from the context.

    a) it's a bullet point
    b) a+b means a is a variable
    c) apple means a means the sound "aaaah"
    d) ape means a means the sound "aye"
    e) 0xa means a means "10"
    f) "a" on my test paper means I did well on it
    g) grade "a" means I bought the good bolts
    h) "achtung" means it's a German "a"

I didn't need 8 different Unicode characters. And so on.

Your trolling is really rock bottom. All this already works fine. Millions of times, each day. Just once a week it fails because someone messed up. Not an issue.

I showed that there is no need for semantic information about the glyphs. It's more compelling to demonstrate a need for semantic information rather than just asserting it.

so you contradict yourself because your context window is exhausted?

Since you insist on being rude, I shall exit.