-th a-a a-b a-t aaa aab aae aah aao aap aas aat ab- aba abb abe abh abo abp abs abt aea aeb aee aeh aeo aep aes aet aha ahb ahe ahh aho ahp ahs aht aoa aob aoe aoh aoo aop aos aot ap- apa apb ape aph apo app aps apt as- asa asb ase ash aso asp ass ast at- ata atb ate ath ato atp ats att b-p baa bab bae bah bao bap bas bat bba bbb bbe bbh bbo bbp bbs bbt be- bea beb bee beh beo bep bes bet bha bhb bhe bhh bho bhp bhs bht boa bob boe boh boo bop bos bot bpa bpb bpe bph bpo bpp bps bpt bsa bsb bse bsh bso bsp bss bst bta btb bte bth bto btp bts btt eaa eab eae eah eao eap eas eat eba ebb ebe ebh ebo ebp ebs ebt eea eeb eee eeo eep ees eet eha ehb ehe ehh eho ehp ehs eht eo- eoa eob eoe eoh eoo eop eos eot ep- epa epb epe eph epo epp eps ept es- esa esb ese esh eso esp ess est eta etb ete eth eto etp ets ett haa hab hae hah hao hap has hat hba hbb hbe hbh hbo hbp hbs hbt he- hea heb hee heh heo hep hes het hha hhb hhe hhh hho hhp hhs hht hoa hob hoe hoh hoo hop hos hot hpa hpb hpe hph hpo hpp hps hpt hsa hsb hse hsh hsp hss hst hta htb hte hth hto htp hts htt oaa oab oae oah oao oap oas oat ob- oba obb obe obh obo obp obs obt oea oeb oee oeh oeo oep oes oet oha ohe ohh oho ohp ohs oht oo- ooa oob ooh ooo oop oos oot op- opa opb ope oph opo opp ops opt os- osa osb ose osh oso osp oss ost ot- ota otb ote oth oto otp ots ott p-p paa pab pae pah pao pap pas pat pba pbb pbe pbo pbp pbs pbt pea peb pee peh peo pep pes pet pha phb phe pho php phs pht poa pob poe poh poo pop pos pot ppa ppb ppe pph ppo ppp pps ppt ps- psa psb pse psh pso psp pss pst pt- pta ptb pte pth pto ptp pts ptt saa sab sae sah sao sap sas sat sba sbb sbe sbh sbo sbp sbs sbt se- sea seb see seh seo sep ses set sh- sha shb she shh sho shp shs sht soa sob soe soh soo sop sos sot spa spb spe sph spo spp sps spt ss- ssa ssb sse ssh sso ssp sss sst sta stb ste sth sto stp sts stt taa tab tae tah tao tap tas tat tba tbb tbe tbh tbo tbp tbs tbt te- tea teb tee teh teo tep tes tet th- tha thb the thh tho thp ths tht to- toa tob toe toh too top tos tot tpa tpb tpe tph tpo tpp tps tpt tsa tsb tse tsh tso tsp tss tst tta ttb tte tth tto ttp tts ttt