Cuz in two - party conversations , like Switchboard , there 's an awful lot too if you just look at backchannels , if you consider those overlaps ? it 's also ver it 's huge. It 's just that people haven't been  looking at that because they 've been doing single - channel processing for  speech recognition.
Mm - hmm.
Mm - hmm ?
So , the question is , you know , how many more overlaps   do you have  of , say the two - person type , by adding more people. to a meeting , and it may be a lot more but i it may   it may not be.