The model for English
There are identical boundary tones on every utterance.
All target shapes are identical, except the focus.
%X  B  B  B | B  A  B | B  B  B  B  Y%
%X  B  B  B | A  B  B | B  B  B  B  Y%
%X  B  A  B | B  B  B | B  B  B  B  Y%
Rather simple phonology.