-al -er a-a a-b a-i aaa aab aae aag aai aak aal aap aar aas ab- aba abb abe abg abi abk abl abp abr abs aea aeb aee aeg aei aek ael aep aer aes ag- aga agb age agg agi agk agl agp agr ags ai- aia aib aie aig aii aik ail aip air ais aka akb ake akg aki akk akl akp akr aks al- ala alb ale alg ali alk all alp alr als ap- apa apb ape apg api apk apl app apr aps ar- ara arb are arg ari ark arl arp arr ars as- asa asb ase asg asi ask asl asp asr ass b-p baa bab bae bag bai bak bal bap bar bas bba bbb bbe bbg bbi bbk bbl bbp bbr bbs be- bea beb bee beg bei bek bel bep ber bes bga bgb bge bgg bgi bgk bgl bgp bgr bgs bi- bia bib bie big bii bik bil bip bir bis bka bkb bke bkg bkk bkl bkp bkr bks bla blb ble blg bli blk bll blp blr bls bpa bpb bpe bpg bpi bpl bpp bpr bps bra brb bre brg bri brk brl brp brr brs bsa bsb bse bsg bsi bsk bsl bsp bsr bss eaa eab eae eag eai eak eal eap ear eas eba ebb ebe ebg ebi ebk ebl ebp ebr ebs eea eeb eee eeg eek eel eep eer ees ega egb ege egg egi egl egp egr egs eia eib eie eig eii eik eil eip eir eis eka ekb eke ekg eki ekl ekp ekr eks ela elb ele elg eli elk ell elp elr els ep- epa epb epe epg epi epl epp epr eps era erb ere erg eri erk erl erp err ers es- esa esb ese esg esi esk esl esp esr ess g-p gaa gab gae gag gai gak gal gap gar gas gba gbe gbg gbi gbk gbl gbp gbr gbs ge- gea geb gee geg gei gek gel gep ger ges gga ggb ggg ggi ggp ggr ggs gia gib gie gig gii gik gil gip gir gis gka gkb gkp gks gla glb gle glg gli glk gll glp glr gls gpa gpb gpe gpg gpi gpk gpl gpp gpr gps gra grb gre grg gri grk grl grp grr grs gsa gsb gse gsg gsi gsk gsl gsp gsr gss ia- iaa iab iae iag iai ial iap iar ias iba ibb ibe ibg ibi ibk ibl ibp ibr ibs ie- iea iee ieg iei iek iel iep ier ies iga igb ige igg igi igk igl igp igr igs iia iib iie iii iil iip iir iis ika ikb ike iki ikk ikl ikr iks il- ila ilb ile ilg ili ilk ill ilp ilr ils ipa ipb ipe ipg ipi ipl ipp ipr ips ir- ira irb ire irg iri irk irl irp irr irs is- isa isb ise isg isi isk isl isp isr iss ka- kaa kab kae kag kai kak kal kap kar kas kba kbb kbe kbi kbk kbl kbp kbr kbs ke- kea keb kee keg kei kek kel kep ker kes kga kgb kgi kgl kgp kgs kia kib kie kig kii kik kil kip kir kis kkb kke kki kkk kkl kkp kkr kks kl- kla klb klg kli klr kls kpa kpe kpi kpk kpl kpp kpr kps kra krg kri krk krl krp krr krs ksa ksb kse ksg ksi ksk ksl ksp ksr kss l-p la- laa lab lae lag lai lak lal lap lar las lba lbb lbe lbg lbi lbk lbl lbp lbr lbs lea leb lee leg lei lek lel lep ler les lga lgb lge lgg lgi lgk lgl lgp lgr lgs lia lib lie lig lii lik lil lip lir lis lka lkb lkg lkl lkp lkr lks lla llb lle llg lli llk lll llp llr lls lpa lpb lpe lpg lpi lpk lpl lpp lpr lps lra lrb lrg lri lrk lrp lrr lrs lsa lsb lse lsg lsi lsk lsl lsp lsr lss p-p paa pab pae pag pai pak pal pap par pas pba pbb pbe pbg pbi pbk pbl pbp pbr pbs pea peb pee peg pei pek pel pep per pes pga pgb pge pgg pgi pgk pgl pgp pgr pgs pia pib pie pig pii pik pil pip pir pis pka pkb pke pkg pki pkl pkp pkr pks pla plb ple plg pli plk pll plp plr pls ppa ppb ppe ppg ppi ppk ppl ppp ppr pps pra prb pre prg pri prk prl prp prr prs ps- psa psb pse psg psi psk psl psp psr pss ra- raa rab rae rag rai rak ral rap rar ras rba rbb rbe rbg rbi rbk rbl rbp rbr rbs re- rea reb ree reg rei rek rel rep rer res rga rgb rge rgg rgi rgk rgp rgr rgs ria rib rie rig rii rik ril rip rir ris rkb rke rkg rkk rkp rks rla rle rlg rli rll rlp rlr rls rpa rpb rpe rpg rpi rpk rpl rpp rpr rps rra rrb rrg rri rrk rrl rrp rrr rrs rsa rsb rse rsg rsi rsk rsl rsp rsr rss saa sab sae sag sai sak sal sap sar sas sba sbb sbe sbg sbi sbk sbl sbp sbr sbs se- sea seb see seg sei sek sel sep ser ses sga sgb sge sgg sgi sgk sgl sgp sgr sgs sia sib sie sig sii sik sil sip sir sis sk- ska skb ske skg ski skk skl skp skr sks sla slb sle slg sli slk sll slp slr sls spa spb spe spg spi spk spl spp spr sps sr- sra srb sre srg sri srk srl srp srr srs ss- ssa ssb sse ssg ssi ssk ssl ssp ssr sss