-er a-a a-b a-q a-t aaa aab aae aak aap aaq aar aas aat ab- aba abb abe abk abp abq abr abs abt aea aeb aee aek aep aeq aer aes aet aka akb ake akk akp akr aks ap- apa apb ape apk app apq apr aps apt aqa aqp aqr aqs aqt ar- ara arb are ark arp arq arr ars art as- asa asb ase ask asp asq asr ass ast at- ata atb ate atp atr ats att b-p baa bab bae bak bap baq bar bas bat bba bbb bbe bbk bbp bbq bbr bbs bbt be- bea beb bee bek bep beq ber bes bet bka bkb bke bkk bkp bkq bkr bks bkt bpa bpb bpe bpp bpr bps bpt bqe bqp bqt bra brb bre brk brp brq brr brs brt bsa bsb bse bsk bsp bsr bss bst bta btb bte btk btp btq btr bts btt eaa eab eae eak eap ear eas eat eba ebb ebe ebk ebp ebq ebr ebs ebt eea eeb eee eek eep eer ees eet eka ekb eke ekp ekr eks ekt ep- epa epb epe epp epq epr eps ept eqa eqe eqp eqq eqs eqt era erb ere erk erp erq err ers ert es- esa esb ese esk esp esq esr ess est eta etb ete etk etp etr ets ett k-t ka- kaa kab kae kak kap kar kas kat kba kbb kbe kbk kbp kbr kbs ke- kea keb kee kek kep ker kes ket kkb kke kkk kkp kkr kks kkt kpa kpe kpk kpp kpq kpr kps kpt kqa kra krk krp krr krs krt ksa ksb kse ksk ksp ksr kss kst kta ktb kte ktk ktp ktr kts ktt p-p paa pab pae pak pap paq par pas pat pba pbb pbe pbk pbp pbr pbs pbt pea peb pee pek pep per pes pet pka pkb pke pkp pkr pks pkt ppa ppb ppe ppk ppp ppq ppr pps ppt pqq pqr pqs pra prb pre prk prp prq prr prs prt ps- psa psb pse psk psp psr pss pst pt- pta ptb pte ptk ptp ptq ptr pts ptt qaa qap qar qas qat qba qbe qbq qbs qee qep qet qpp qpr qps qqk qqq qra qrb qre qrp qrs qrt qsa qsp qsr qst qta qtq qtr qts ra- raa rab rae rak rap raq rar ras rat rba rbb rbe rbk rbp rbr rbs rbt re- rea reb ree rek rep req rer res ret rkb rke rkk rkp rks rkt rpa rpb rpe rpk rpp rpr rps rpt rqs rra rrb rrk rrp rrq rrr rrs rrt rsa rsb rse rsk rsp rsq rsr rss rst rta rtb rte rtk rtp rtq rtr rts rtt saa sab sae sak sap saq sar sas sat sba sbb sbe sbk sbp sbq sbr sbs sbt se- sea seb see sek sep seq ser ses set sk- ska skb ske skk skp skq skr sks skt spa spb spe spk spp spq spr sps spt sqa sqq sqr sqs sr- sra srb sre srk srp srq srr srs srt ss- ssa ssb sse ssk ssp ssq ssr sss sst sta stb ste stk stp stq str sts stt taa tab tae tak tap taq tar tas tat tba tbb tbe tbk tbp tbr tbs tbt te- tea teb tee tek tep teq ter tes tet tka tkb tke tkk tkp tkr tks tkt tpa tpb tpe tpk tpp tpq tpr tps tpt tra trb tre trk trp trq trr trs trt tsa tsb tse tsk tsp tsq tsr tss tst tta ttb tte ttk ttp ttr tts ttt