-er a-a a-b a-i a-t aaa aab aae aai aak aam aap aar aas aat ab- aba abb abe abi abk abm abp abr abs abt aea aeb aee aei aek aem aep aer aes aet ai- aia aib aie aii aik aim aip air ais ait aka akb ake aki akk akm akp akr aks ama amb ame ami amk amm amp amr ams amt ap- apa apb ape api apk apm app apr aps apt ar- ara arb are ari ark arm arp arr ars art as- asa asb ase asi ask asm asp asr ass ast at- ata atb ate ati atm atp atr ats att b-p baa bab bae bai bak bam bap bar bas bat bba bbb bbe bbi bbk bbm bbp bbr bbs bbt be- bea beb bee bei bek bem bep ber bes bet bi- bia bib bie bii bik bim bip bir bis bit bka bkb bke bkk bkm bkp bkr bks bkt bma bmb bme bmi bmk bmm bmp bmr bms bmt bpa bpb bpe bpi bpm bpp bpr bps bpt bra brb bre bri brk brm brp brr brs brt bsa bsb bse bsi bsk bsm bsp bsr bss bst bta btb bte bti btk btm btp btr bts btt eaa eab eae eai eak eam eap ear eas eat eba ebb ebe ebi ebk ebm ebp ebr ebs ebt eea eeb eee eek eem eep eer ees eet eia eib eie eii eik eim eip eir eis eit eka ekb eke eki ekp ekr eks ekt em- ema emb eme emi emk emm emp emr ems emt ep- epa epb epe epi epm epp epr eps ept era erb ere eri erk erm erp err ers ert es- esa esb ese esi esk esm esp esr ess est eta etb ete eti etk etm etp etr ets ett ia- iaa iab iae iai iam iap iar ias iat iba ibb ibe ibi ibk ibm ibp ibr ibs ibt ie- iea iee iei iek iem iep ier ies iet iia iib iie iii iim iip iir iis iit ika ikb ike iki ikk ikr iks ikt im- ima imb ime imi imm imp ims imt ipa ipb ipe ipi ipm ipp ipr ips ipt ir- ira irb ire iri irk irm irp irr irs irt is- isa isb ise isi isk ism isp isr iss ist ita itb ite iti itk itm itp its itt k-t ka- kaa kab kae kai kak kam kap kar kas kat kba kbb kbe kbi kbk kbm kbp kbr kbs ke- kea keb kee kei kek kem kep ker kes ket kia kib kie kii kik kim kip kir kis kit kkb kke kki kkk kkm kkp kkr kks kkt kma kmb kme kmi kmk kmm kmp kms kmt kpa kpe kpi kpk kpm kpp kpr kps kpt kra kri krk krp krr krs krt ksa ksb kse ksi ksk ksm ksp ksr kss kst kta ktb kte ktk ktm ktp ktr kts ktt m-r maa mab mae mai mak mam map mar mas mat mba mbb mbe mbi mbk mbm mbp mbr mbs mbt mea meb mee mei mek mem mep mer mes met mi- mia mib mie mii mik mim mip mir mis mit mka mkb mke mkk mkm mkp mkr mks mkt mma mmb mme mmi mmk mmm mmp mmr mms mmt mpa mpb mpe mpi mpk mpm mpp mpr mps mpt mra mrb mre mri mrk mrm mrp mrr mrs mrt msa msb mse msi msk msm msp msr mss mst mta mtb mte mti mtk mtm mtp mtr mts mtt p-p paa pab pae pai pak pam pap par pas pat pba pbb pbe pbi pbk pbm pbp pbr pbs pbt pea peb pee pei pek pem pep per pes pet pia pib pie pii pik pim pip pir pis pit pka pkb pke pki pkm pkp pkr pks pkt pma pmb pme pmi pmk pmm pmp pmr pms pmt ppa ppb ppe ppi ppk ppm ppp ppr pps ppt pra prb pre pri prk prm prp prr prs prt ps- psa psb pse psi psk psm psp psr pss pst pt- pta ptb pte pti ptk ptm ptp ptr pts ptt ra- raa rab rae rai rak ram rap rar ras rat rba rbb rbe rbi rbk rbm rbp rbr rbs rbt re- rea reb ree rei rek rem rep rer res ret ria rib rie rii rik rim rip rir ris rit rkb rke rkk rkm rkp rks rkt rma rmb rme rmi rmm rmp rmr rms rmt rpa rpb rpe rpi rpk rpm rpp rpr rps rpt rra rrb rri rrk rrm rrp rrr rrs rrt rsa rsb rse rsi rsk rsm rsp rsr rss rst rta rtb rte rti rtk rtm rtp rtr rts rtt saa sab sae sai sak sam sap sar sas sat sba sbb sbe sbi sbk sbm sbp sbr sbs sbt se- sea seb see sei sek sem sep ser ses set sia sib sie sii sik sim sip sir sis sit sk- ska skb ske ski skk skm skp skr sks skt sma smb sme smi smk smm smp smr sms smt spa spb spe spi spk spm spp spr sps spt sr- sra srb sre sri srk srm srp srr srs srt ss- ssa ssb sse ssi ssk ssm ssp ssr sss sst sta stb ste sti stk stm stp str sts stt taa tab tae tai tak tam tap tar tas tat tba tbb tbe tbi tbk tbm tbp tbr tbs tbt te- tea teb tee tei tek tem tep ter tes tet tia tib tie tii tik tim tip tir tis tit tka tkb tke tkk tkm tkp tkr tks tkt tma tmb tme tmi tmk tmm tmp tmr tms tmt tpa tpb tpe tpi tpk tpm tpp tpr tps tpt tra trb tre tri trk trm trp trr trs trt tsa tsb tse tsi tsk tsm tsp tsr tss tst tta ttb tte tti ttk ttm