bbb bbh bbi bbo bhb bhh bhi bho bhv bi- bib bih bii bio biv bob boh boi boo bov bvb bvh bvi bvo bvv h-i hbb hbh hbi hbo hbv hhb hhh hhi hho hhv hib hih hii hio hiv hob hoh hoi hoo hov hv- hvb hvo hvv i-v ibb ibh ibi ibo ibv ihb ihh ihi iho ihv iib iih iii iio io- iob ioh ioi ioo iov ivb ivi ivo ivv o-i ob- obb obh obi obo obv ohh ohi oho oib oii oio oiv oo- oob ooh ooi ooo oov ov- ovb ovh ovi ovo ovv vbh vbi vbo vbv vh- vhb vhi vho vi- vib vii vio viv vob voh voi voo vov vvb vvi vvo vvv