-ol bbb bbh bbi bbk bbl bbo bbr bhb bhh bhi bhk bhl bho bhr bi- bib bih bii bik bil bio bir bkb bkk bkl bko bkr blb blh bli blk bll blo blr bob boh boi bok bol boo bor brb brh bri brk brl bro brr h-i hbb hbh hbi hbk hbl hbo hbr hhb hhh hhi hhk hhl hho hhr hib hih hii hik hil hio hir hkb hkh hki hkk hkl hko hkr hlb hlh hli hll hlo hlr hob hoh hoi hok hol hoo hor hr- hrb hrh hri hrk hrl hro hrr ibb ibh ibi ibk ibl ibo ibr ihb ihh ihi ihk ihl iho ihr iib iih iii iil iio iir ikb iki ikk ikl iko ikr il- ilb ilh ili ilk ill ilo ilr io- iob ioh ioi iol ioo ior ir- irb iri irk irl iro irr kbb kbh kbi kbk kbl kbo kbr khh khi khk kho khr kib kih kii kik kil kio kir kkb kkh kki kkk kkl kkr kl- klb klh kli klo klr kob koh koi kok kol koo kor kri krk krl kro krr lbb lbh lbi lbk lbl lbo lbr lhb lhh lhi lhk lho lhr lib lih lii lik lil lio lir lkb lkh lkl lkr llb lli llk lll llo llr lob loh loi lok lol loo lor lrb lrh lri lrk lro lrr o-i ob- obb obh obi obk obl obo obr ohh ohi ohl oho ohr oib oii oik oil oio oir okb oki okk okl oko okr olb oli olk oll olo oo- oob ooh ooi ook ool ooo oor or- orb orh ori ork orl oro orr rbb rbh rbi rbk rbl rbo rbr rh- rhb rhh rhi rhl rho rhr rib rih rii rik ril rio rir rkb rkk rko rlh rli rll rlo rlr rob roh roi rok rol roo ror rrb rrh rri rrk rrl rrr