-ol -th bbb bbh bbi bbl bbo bbs bbt bhb bhh bhi bhl bho bhs bht bi- bib bih bii bil bio bis bit blb blh bli bll blo bls blt bob boh boi bol boo bos bot bsb bsh bsi bsl bso bss bst btb bth bti btl bto bts btt h-i hbb hbh hbi hbl hbo hbs hbt hhb hhh hhi hhl hho hhs hht hib hih hii hil hio his hit hlb hlh hli hll hlo hls hlt hob hoh hoi hol hoo hos hot hsb hsh hsi hsl hss hst htb hth hti htl hto hts htt ibb ibh ibi ibl ibo ibs ibt ihb ihh ihi ihl iho ihs iht iib iih iii iil iio iis iit il- ilb ilh ili ill ilo ils ilt io- iob ioh ioi iol ioo ios iot is- isb ish isi isl iso iss ist itb ith iti itl ito its itt lbb lbh lbi lbl lbo lbs lbt lhb lhh lhi lho lhs lht lib lih lii lil lio lis lit llb lli lll llo lls llt lob loh loi lol loo los lot lsb lsh lsi lsl lso lss lst ltb lth lti ltl lto lts ltt o-i ob- obb obh obi obl obo obs obt ohh ohi ohl oho ohs oht oib oii oil oio ois oit olb oli oll olo ols olt oo- oob ooh ooi ool ooo oos oot os- osb osh osi osl oso oss ost ot- otb oth oti otl oto ots ott sbb sbh sbi sbl sbo sbs sbt sh- shb shh shi shl sho shs sht sib sih sii sil sio sis sit slb slh sli sll slo sls slt sob soh soi sol soo sos sot ss- ssb ssh ssi ssl sso sss sst stb sth sti stl sto sts stt tbb tbh tbi tbl tbo tbs tbt th- thb thh thi thl tho ths tht tib tih tii til tio tis tit tlh tli tll tlo tls tlt to- tob toh toi tol too tos tot tsb tsh tsi tsl tso tss tst ttb tth tti ttl tto tts ttt