-ol -th b-p bbb bbh bbl bbo bbp bbs bbt bhb bhh bhl bho bhp bhs bht blb blh bll blo blp bls blt bob boh bol boo bop bos bot bpb bph bpl bpo bpp bps bpt bsb bsh bsl bso bsp bss bst btb bth btl bto btp bts btt hbb hbh hbl hbo hbp hbs hbt hhb hhh hhl hho hhp hhs hht hlb hlh hll hlo hlp hls hlt hob hoh hol hoo hop hos hot hpb hph hpl hpo hpp hps hpt hsb hsh hsl hsp hss hst htb hth htl hto htp hts htt l-p lbb lbh lbl lbo lbp lbs lbt lhb lhh lho lhp lhs lht llb lll llo llp lls llt lob loh lol loo lop los lot lpb lph lpl lpo lpp lps lpt lsb lsh lsl lso lsp lss lst ltb lth ltl lto ltp lts ltt ob- obb obh obl obo obp obs obt ohh ohl oho ohp ohs oht olb oll olo olp ols olt oo- oob ooh ool ooo oop oos oot op- opb oph opl opo opp ops opt os- osb osh osl oso osp oss ost ot- otb oth otl oto otp ots ott p-p pbb pbl pbo pbp pbs pbt phb phl pho php phs pht plb plh pll plo plp pls plt pob poh pol poo pop pos pot ppb pph ppl ppo ppp pps ppt ps- psb psh psl pso psp pss pst pt- ptb pth ptl pto ptp pts ptt sbb sbh sbl sbo sbp sbs sbt sh- shb shh shl sho shp shs sht slb slh sll slo slp sls slt sob soh sol soo sop sos sot spb sph spl spo spp sps spt ss- ssb ssh ssl sso ssp sss sst stb sth stl sto stp sts stt tbb tbh tbl tbo tbp tbs tbt th- thb thh thl tho thp ths tht tlh tll tlo tlp tls tlt to- tob toh tol too top tos tot tpb tph tpl tpo tpp tps tpt tsb tsh tsl tso tsp tss tst ttb tth ttl tto ttp tts ttt