Oh , f a lot of thing. Because we trying a lot of s  thing , and we doesn't work ,  we remove these. Maybe  we trying again with the articulatory feature. I don't know exactly because we tried  we  some  one experiment that doesn't work. Um , forgot it , something  I don't know exactly
Mm - hmm.
because , tsk   maybe do better some step the general ,  eh , diagram.
Mm - hmm.