How to understand domain filtering in uBlock Origin?

Question

Ad blocking

There is a site - example.org
example.org##li- blocking
example.*##li - blocking
*example.org*##li - not blocking
example.org*##li- not blocking
*example.org##li- not blocking
*.org##li- not blocking
example.o*##li- not blocking
*.example.org##li- not blocking
.*example.org##li- not blocking
.*example.org.*##li- not blocking
.*##li- not blocking
*##li- not blocking

Answer 1

https://github.com/gorhill/uBlock/wiki/Static-filt...
this sharp is a technical operator, isn't it?

Answer 2

I went through all the options, except for the correct one (just a subdomain point, without an asterisk):

. example.org##li