-al -er a-a a-b aaa aab aad aae aak aal aap aar aas ab- aba abb abd abe abk abl abp abr abs ad- ada adb add ade adk adl adp adr ads aea aeb aed aee aek ael aep aer aes aka akb akd ake akk akl akp akr aks al- ala alb ald ale alk all alp alr als ap- apa apb apd ape apk apl app apr aps ar- ara arb ard are ark arl arp arr ars as- asa asb asd ase ask asl asp asr ass b-p baa bab bad bae bak bal bap bar bas bba bbb bbd bbe bbk bbl bbp bbr bbs bda bdb bdd bde bdk bdl bdp bdr bds be- bea beb bed bee bek bel bep ber bes bka bkb bke bkk bkl bkp bkr bks bla blb bld ble blk bll blp blr bls bpa bpb bpd bpe bpl bpp bpr bps bra brb brd bre brk brl brp brr brs bsa bsb bsd bse bsk bsl bsp bsr bss daa dab dad dae dak dal dap dar das dba dbb dbd dbe dbk dbl dbp dbr dbs dda ddb ddd dde ddk ddl ddp ddr dds de- dea deb ded dee dek del dep der des dka dkb dke dkk dkl dkp dkr dks dl- dla dlb dld dle dlk dll dlp dlr dls dpa dpb dpd dpe dpk dpl dpp dpr dps dra drb drd dre drk drl drp drr drs dsa dsb dsd dse dsk dsl dsp dsr dss eaa eab ead eae eak eal eap ear eas eba ebb ebd ebe ebk ebl ebp ebr ebs ed- eda edb edd ede edk edl edp edr eds eea eeb eed eee eek eel eep eer ees eka ekb ekd eke ekl ekp ekr eks ela elb eld ele elk ell elp elr els ep- epa epb epd epe epl epp epr eps era erb erd ere erk erl erp err ers es- esa esb esd ese esk esl esp esr ess ka- kaa kab kad kae kak kal kap kar kas kba kbb kbd kbe kbk kbl kbp kbr kbs kda kdb kde kdk kdl kdp kdr kds ke- kea keb ked kee kek kel kep ker kes kkb kke kkk kkl kkp kkr kks kl- kla klb kld klr kls kpa kpd kpe kpk kpl kpp kpr kps kra krd krk krl krp krr krs ksa ksb ksd kse ksk ksl ksp ksr kss l-p la- laa lab lad lae lak lal lap lar las lba lbb lbd lbe lbk lbl lbp lbr lbs lda ldb ldd lde ldk ldl ldp ldr lds lea leb led lee lek lel lep ler les lka lkb lkl lkp lkr lks lla llb lld lle llk lll llp llr lls lpa lpb lpd lpe lpk lpl lpp lpr lps lra lrb lrd lrk lrp lrr lrs lsa lsb lsd lse lsk lsl lsp lsr lss p-p paa pab pad pae pak pal pap par pas pba pbb pbd pbe pbk pbl pbp pbr pbs pda pdb pdd pde pdk pdl pdp pdr pds pea peb ped pee pek pel pep per pes pka pkb pkd pke pkl pkp pkr pks pla plb pld ple plk pll plp plr pls ppa ppb ppd ppe ppk ppl ppp ppr pps pra prb prd pre prk prl prp prr prs ps- psa psb psd pse psk psl psp psr pss ra- raa rab rad rae rak ral rap rar ras rba rbb rbd rbe rbk rbl rbp rbr rbs rda rdb rdd rde rdl rdp rdr rds re- rea reb red ree rek rel rep rer res rkb rke rkk rkp rks rla rld rle rll rlp rlr rls rpa rpb rpd rpe rpk rpl rpp rpr rps rra rrb rrd rrk rrl rrp rrr rrs rsa rsb rsd rse rsk rsl rsp rsr rss saa sab sad sae sak sal sap sar sas sba sbb sbd sbe sbk sbl sbp sbr sbs sda sdb sdd sde sdk sdl sdp sdr sds se- sea seb sed see sek sel sep ser ses sk- ska skb skd ske skk skl skp skr sks sla slb sld sle slk sll slp slr sls spa spb spd spe spk spl spp spr sps sr- sra srb srd sre srk srl srp srr srs ss- ssa ssb ssd sse ssk ssl ssp ssr sss