Mm - hmm.
" he walked to the meeting " as opposed to " he ran " , or " he did walk to the meeting " as opposed to " he didn't walk ". You know ,
Mm - hmm.
so we need to have a notation for that which , um , I think that 's still in progress. So , sort of I 'm still working it out. But it did  one  one implication it does f have for the other side , which we 'll get to in a minute is that I couldn't think of a good way to say " here are the possible things that you could focus on " , cuz it seems like any entity in any sentence , you know , or any meaning component of anyth you know  all the possible meanings you could have , any of them could be the subject of focus.