How does "mentions" work ?

How do you think the "mentions" capability within the "company" section in the grapevine app work ?

It's not like someone is tagging a company like they can tag a user, right !!

Also, a substring match would not also work since the company name can be quite generic and then you could have irrelevant posts..

And keeping a human who is doing manual annotation also does not make sense because it's literally not scalable...

What do you think ?