There 's one level  there 's one more level of indirection that I 'm forgetting.
Suppose you have a word sequence and you have two different segmentations of that same word sequence. f Say , one segmentation is in terms of , um , you know , uh , sentences. And another segmentation is in terms of , um ,  I don't know ,  prosodic phrases. And let 's say that they don't  nest. So , you know , a prosodic phrase may cross two sentences or something.
Right.
I don't know if that 's true or not but  let 's as