Mm - hmm.
In which case they have to check to see , uh , who the , uh , speaker in here wa in order to resolve those. But when you actually say that " he walked into  " , whatever , um , the " he " will refer to a particular  You  you will already have figured who " he " or " you " , mmm , or " I " , maybe is a bett better example , who " I " refers to. Um , and then you 'd just be able to refer to Harry , you know , in wherever that person  whatever role that person was playing in the event.
Mmm. That 's up at the reference part.
Yeah , yeah.