He Can Only Say "Yes" and "No"

It's common to have communication problems after a severe stroke. But Graham Pawley is an unusual case in that he can understand everything but say virtually nothing back. He has to get by with "yes" and "no".~… It's not strictly true that Graham can only say "yes" and "no". He can say "and", "no" and "mmm", which means yes, and he also makes an "urr" sound. When he says "and urr…" it means he has something else to say and wants you guess what it is.…