-th bbb bbh bbi bbo bbt bhb bhh bhi bho bht bi- bib bih bii bio bit bob boh boi boo bot btb bth bti bto btt h-i hbb hbh hbi hbo hbt hhb hhh hhi hho hht hib hih hii hio hit hob hoh hoi hoo hot htb hth hti hto htt ibb ibh ibi ibo ibt ihb ihh ihi iho iht iib iih iii iio iit io- iob ioh ioi ioo iot itb ith iti ito itt o-i ob- obb obh obi obo obt ohh ohi oho oht oib oii oio oit oo- oob ooh ooi ooo oot ot- otb oth oti oto ott tbb tbh tbi tbo tbt th- thb thh thi tho tht tib tih tii tio tit to- tob toh toi too tot ttb tth tti tto ttt