-er a-a a-b a-t aaa aab aae aaf aak aao aap aar aas aat aaw ab- aba abb abe abf abk abo abp abr abs abt abw aea aeb aee aef aek aeo aep aer aes aet aew af- afa afb afe aff afk afo afp afr afs aft afw aka akb ake akk ako akp akr aks akw aoa aob aoe aof aok aoo aop aor aos aot aow ap- apa apb ape apf apk apo app apr aps apt apw ar- ara arb are arf ark aro arp arr ars art arw as- asa asb ase asf ask aso asp asr ass ast asw at- ata atb ate atf ato atp atr ats att atw aw- awa awb awe awf awk awo awp awr aws awt aww b-p baa bab bae baf bak bao bap bar bas bat baw bba bbb bbe bbf bbk bbo bbp bbr bbs bbt bbw be- bea beb bee bef bek beo bep ber bes bet bew bfa bfb bfe bff bfo bfp bfr bfs bft bka bkb bke bkf bkk bko bkp bkr bks bkt bkw boa bob boe bof bok boo bop bor bos bot bow bpa bpb bpe bpf bpo bpp bpr bps bpt bpw bra brb bre brf brk bro brp brr brs brt brw bsa bsb bse bsf bsk bso bsp bsr bss bst bsw bta btb bte btf btk bto btp btr bts btt btw bwa bwb bwf bwk bwo bwp bwr bws eaa eab eae eaf eak eao eap ear eas eat eaw eba ebb ebe ebf ebk ebo ebp ebr ebs ebt ebw eea eeb eee eef eek eeo eep eer ees eet eew ef- efa efb efe eff efo efp efr efs eft efw eka ekb eke ekf eko ekp ekr eks ekt eo- eoa eob eoe eof eok eoo eop eor eos eot eow ep- epa epb epe epf epo epp epr eps ept epw era erb ere erf erk ero erp err ers ert erw es- esa esb ese esf esk eso esp esr ess est esw eta etb ete etf etk eto etp etr ets ett etw ewa ewb ewe ewf ewk ewo ewp ewr ews ewt eww faa fab fae faf fak fao fap far fas fat faw fba fbb fbe fbf fbk fbo fbp fbr fbs fbt fbw fea feb fee fef fek feo fep fer fes fet few ffa ffe fff ffk ffo ffp ffr ffs fft ffw fka fkb fkf fkk fkp fkt foa fob foe fof fok foo fop for fos fot fow fpa fpb fpe fpk fpo fpp fpr fps fpt fra frb fre frf frk fro frp frr frs frt frw fsa fsb fse fsf fsk fso fsp fsr fss fst fsw fta ftb fte ftf ftk fto ftp ftr fts ftt ftw fwa fwb fwe fwf fwo fwp fws fwt k-t ka- kaa kab kae kaf kak kao kap kar kas kat kaw kba kbb kbe kbf kbk kbo kbp kbr kbs kbw ke- kea keb kee kef kek keo kep ker kes ket kew kfa kff kfo kfs kfw kkb kke kkk kkp kkr kks kkt koa kob koe kof kok koo kop kor kos kot kow kpa kpe kpf kpk kpo kpp kpr kps kpt kpw kra krf krk kro krp krr krs krt krw ksa ksb kse ksf ksk kso ksp ksr kss kst ksw kta ktb kte ktf ktk kto ktp ktr kts ktt ktw kw- kwa kwf kwk kwo kwp kws kwt kww oaa oab oae oaf oak oao oap oar oas oat oaw ob- oba obb obe obf obk obo obp obr obs obt obw oea oeb oee oef oeo oep oer oes oet of- ofa ofb ofe off ofo ofp ofr ofs oft ofw oka okb oke okk oko okp okr oks okw oo- ooa oob oof ook ooo oop oor oos oot oow op- opa opb ope opf opk opo opp opr ops opt opw or- ora orb ore orf ork oro orp orr ors ort os- osa osb ose osf osk oso osp osr oss ost osw ot- ota otb ote otf otk oto otp otr ots ott otw owa owb owe owf owk owo owp ows owt oww p-p paa pab pae paf pak pao pap par pas pat paw pba pbb pbe pbf pbk pbo pbp pbr pbs pbt pbw pea peb pee pef pek peo pep per pes pet pew pfa pfb pfe pff pfk pfo pfp pfr pfs pft pka pkb pke pkf pko pkp pkr pks pkt poa pob poe pof pok poo pop por pos pot pow ppa ppb ppe ppf ppk ppo ppp ppr pps ppt ppw pra prb pre prf prk pro prp prr prs prt prw ps- psa psb pse psf psk pso psp psr pss pst psw pt- pta ptb pte ptf ptk pto ptp ptr pts ptt ptw pwa pwb pwe pwf pwo pwp pwr pws pwt ra- raa rab rae raf rak rao rap rar ras rat raw rba rbb rbe rbf rbk rbo rbp rbr rbs rbt rbw re- rea reb ree ref rek reo rep rer res ret rew rfa rfb rfe rff rfk rfo rfp rfr rfs rft rfw rkb rke rkf rkk rko rkp rks rkt roa rob roe rof rok roo rop ror ros rot row rpa rpb rpe rpf rpk rpo rpp rpr rps rpt rpw rra rrb rrf rrk rrp rrr rrs rrt rsa rsb rse rsf rsk rso rsp rsr rss rst rsw rta rtb rte rtf rtk rto rtp rtr rts rtt rtw rwa rwb rwe rwf rwr rws saa sab sae saf sak sao sap sar sas sat saw sba sbb sbe sbf sbk sbo sbp sbr sbs sbt sbw se- sea seb see sef sek seo sep ser ses set sew sfa sfb sfe sff sfk sfo sfp sfr sfs sft sfw sk- ska skb ske skf skk sko skp skr sks skt skw soa sob soe sof sok soo sop