-er a-a a-t aaa aae aaf aak aao aap aar aas aat aea aee aef aek aeo aep aer aes aet af- afa afe aff afk afo afp afr afs aft aka ake akk ako akp akr aks aoa aoe aof aok aoo aop aor aos aot ap- apa ape apf apk apo app apr aps apt ar- ara are arf ark aro arp arr ars art as- asa ase asf ask aso asp asr ass ast at- ata ate atf ato atp atr ats att eaa eae eaf eak eao eap ear eas eat eea eee eef eek eeo eep eer ees eet ef- efa efe eff efo efp efr efs eft eka eke ekf eko ekp ekr eks ekt eo- eoa eoe eof eok eoo eop eor eos eot ep- epa epe epf epo epp epr eps ept era ere erf erk ero erp err ers ert es- esa ese esf esk eso esp esr ess est eta ete etf etk eto etp etr ets ett faa fae faf fak fao fap far fas fat fea fee fef fek feo fep fer fes fet ffa ffe fff ffk ffo ffp ffr ffs fft fka fkf fkk fkp fkt foa foe fof fok foo fop for fos fot fpa fpe fpk fpo fpp fpr fps fpt fra fre frf frk fro frp frr frs frt fsa fse fsf fsk fso fsp fsr fss fst fta fte ftf ftk fto ftp ftr fts ftt k-t ka- kaa kae kaf kak kao kap kar kas kat ke- kea kee kef kek keo kep ker kes ket kfa kff kfo kfs kke kkk kkp kkr kks kkt koa koe kof kok koo kop kor kos kot kpa kpe kpf kpk kpo kpp kpr kps kpt kra krf krk kro krp krr krs krt ksa kse ksf ksk kso ksp ksr kss kst kta kte ktf ktk kto ktp ktr kts ktt oaa oae oaf oak oao oap oar oas oat oea oee oef oeo oep oer oes oet of- ofa ofe off ofo ofp ofr ofs oft oka oke okk oko okp okr oks oo- ooa oof ook ooo oop oor oos oot op- opa ope opf opk opo opp opr ops opt or- ora ore orf ork oro orp orr ors ort os- osa ose osf osk oso osp osr oss ost ot- ota ote otf otk oto otp otr ots ott p-p paa pae paf pak pao pap par pas pat pea pee pef pek peo pep per pes pet pfa pfe pff pfk pfo pfp pfr pfs pft pka pke pkf pko pkp pkr pks pkt poa poe pof pok poo pop por pos pot ppa ppe ppf ppk ppo ppp ppr pps ppt pra pre prf prk pro prp prr prs prt ps- psa pse psf psk pso psp psr pss pst pt- pta pte ptf ptk pto ptp ptr pts ptt ra- raa rae raf rak rao rap rar ras rat re- rea ree ref rek reo rep rer res ret rfa rfe rff rfk rfo rfp rfr rfs rft rke rkf rkk rko rkp rks rkt roa roe rof rok roo rop ror ros rot rpa rpe rpf rpk rpo rpp rpr rps rpt rra rrf rrk rrp rrr rrs rrt rsa rse rsf rsk rso rsp rsr rss rst rta rte rtf rtk rto rtp rtr rts rtt saa sae saf sak sao sap sar sas sat se- sea see sef sek seo sep ser ses set sfa sfe sff sfk sfo sfp sfr sfs sft sk- ska ske skf skk sko skp skr sks skt soa soe sof sok soo sop sor sos sot spa spe spf spk spo spp spr sps spt sr- sra sre srf srk sro srp srr srs srt ss- ssa sse ssf ssk sso ssp ssr sss sst sta ste stf stk sto stp str sts stt taa tae taf tak tao tap tar tas tat te- tea tee tef tek teo tep ter tes tet tfa tfe tff tfk tfo tfp tfr tfs tft tka tke tkk tko tkp tkr tks tkt to- toa toe tof tok too top tor tos tot tpa tpe tpf tpk tpo tpp tpr tps tpt tra tre trf trk tro trp trr trs trt tsa tse tsf tsk tso tsp tsr tss tst tta tte ttf ttk tto ttp ttr tts ttt