application of logic programming?

I was going to ask this on stack overflow but im sure prog will give me better answers,

What are some actual good uses of logic programming? Can people please give actual code along with the claims too?

expert systems I saw something where people were generating law documents and that seems like one valid use.

You mean like PLCs? It's used for industrial controls.

no like prolog and similar

Prolog is too shitty to be practical for anything, so that's not a question I've considered. However, there are other logical languages that are less shitty, but they are even more obscure than prolog.

I personally find prolog and the like to give the most brevity when non-determinism is utilized. Your computations are branches that may die off and backtrack. This is expressed well in prolog.

:- initialization(main).
main :- write('Hello World!'), nl, halt.