-al -er -ol a-a a-b a-c aaa aab aac aae aaf aah aak aal aan aao aar aau ab- aba abb abc abe abf abh abk abl abn abo abr abu ac- aca acb acc ace acf ach ack acl acn aco acr acu aea aeb aec aee aef aeh aek ael aen aeo aer aeu af- afa afb afc afe aff afh afk afl afn afo afr afu aha ahb ahc ahe ahf ahh ahk ahl ahn aho ahr ahu aka akb akc ake akh akk akl akn ako akr aku al- ala alb alc ale alf alh alk all aln alo alr alu an- ana anb anc ane anf anh ank anl ann ano anr anu aoa aob aoc aoe aof aoh aok aol aon aoo aor aou ar- ara arb arc are arf arh ark arl arn aro arr aru au- aua aub auc aue auf auh auk aul aun auo aur b-u baa bab bac bae baf bah bak bal ban bao bar bau bba bbb bbc bbe bbf bbh bbk bbl bbn bbo bbr bbu bca bcb bcc bce bcf bch bck bcl bcn bco bcr bcu be- bea beb bec bee bef beh bek bel ben beo ber beu bfa bfb bfc bfe bff bfh bfl bfn bfo bfr bfu bha bhb bhc bhe bhf bhh bhk bhl bho bhr bhu bka bkb bkc bke bkf bkk bkl bkn bko bkr bla blb blc ble blf blh blk bll bln blo blr blu bna bnb bnc bne bnf bnk bnl bnn bno bnr bnu boa bob boc boe bof boh bok bol bon boo bor bou bra brb bre brf brh brk brl brn bro brr bru bua bub buc bue buf buh buk bul bun buo bur buu c-- caa cab cac cae caf cah cak cal can cao car cau cba cbb cbc cbe cbf cbh cbk cbl cbn cbo cbr cbu cca ccb ccc cce ccf cch cck ccl ccn cco ccr ccu ce- cea ceb cec cee cef ceh cek cel cen ceo cer ceu cfa cfb cfc cfe cff cfh cfk cfl cfn cfo cfr cfu ch- cha chb chc che chf chh chk chl chn cho chr chu cka ckb ckc ckh cko cl- cla clb clc cle clf clh clk cll cln clo clr clu cn- cna cnb cnc cne cnf cnh cnl cnn cno cnr cnu co- coa cob coc coe cof coh cok col con coo cor cou cra crb crc cre crf crh crk crl crn cro crr cru cua cub cuc cue cuf cuh cuk cul cun cuo cur cuu eaa eab eac eae eaf eah eak eal ean eao ear eau eba ebb ebc ebe ebf ebh ebk ebl ebn ebo ebr ebu ec- eca ecb ecc ece ecf ech eck ecl ecn eco ecr ecu eea eeb eec eee eef eek eel een eeo eer ef- efa efb efc efe eff efh efl efo efr eha ehb ehc ehe ehf ehh ehl ehn eho ehr ehu eka ekb ekc eke ekf ekh ekl eko ekr eku ela elb elc ele elf elh elk ell eln elo elr elu en- ena enb enc ene enf enh enk enl enn eno enr enu eo- eoa eob eoc eoe eof eoh eok eol eon eoo eor eou era erb erc ere erf erh erk erl ern ero err eru eu- eua eub euc eue euf eul eun eur faa fab fac fae faf fah fak fal fan fao far fau fba fbb fbc fbe fbf fbh fbk fbl fbn fbo fbr fbu fca fcb fcc fce fcf fck fcl fcn fco fcr fcu fea feb fec fee fef feh fek fel fen feo fer feu ffa ffc ffe fff ffh ffk ffl ffn ffo ffr ffu fha fhb fhc fhe fhf fhh fhl fhn fho fhr fka fkb fkc fkf fkk fkl fla flb flc fle flf fll fln flo flr flu fna fnb fnc fne fnf fnh fnk fnl fnn fnr fnu foa fob foc foe fof foh fok fol fon foo for fou fra frb frc fre frf frh frk frl frn fro frr fru fua fub fue fuf fuk ful fun fuo fur fuu haa hab hac hae haf hah hak hal han hao har hau hba hbb hbc hbe hbf hbh hbk hbl hbn hbo hbr hbu hca hcb hcc hce hcf hch hck hcl hcn hco hcr he- hea heb hec hee hef heh hek hel hen heo her heu hfa hfb hfc hfe hff hfh hfk hfl hfn hfo hfr hfu hha hhb hhc hhe hhf hhh hhk hhl hhn hho hhr hhu hka hkb hkf hkh hkk hkl hkn hko hkr hku hla hlb hlc hle hlf hlh hll hln hlo hlr hlu hna hnb hnc hne hnf hnh hnk hnl hnn hno hnu hoa hob hoc hoe hof hoh hok hol hon hoo hor hou hr- hra hrb hrc hre hrf hrh hrk hrl hrn hro hrr hru hua hub huc hue huf huh huk hul hun huo hur huu ka- kaa kab kac kae kaf kah kak kal kan kao kar kau kba kbb kbc kbe kbf kbh kbk kbl kbn kbo kbr kbu kca kcb kcc kce kch kck kcl kcn kcr kcu ke- kea keb kec kee kef keh kek kel ken keo ker kfa kfc kff kfh kfo kfu kha khe khf khh khk khn kho khr khu kkb kkc kke kkh kkk kkl kkn kkr kku kl- kla klb klc klf klh klo klr klu kn- kna knc kne knf knk knl knn kno knr knu koa kob koc koe kof koh kok kol kon koo kor kou kra krc krf krk krl krn kro krr kru kub kuc kue kuh kuk kul kun kur kuu la- laa lab lac lae laf lah lak lal lan lao lar lau lba lbb lbc lbe lbf lbh lbk lbl lbo lbr lbu lca lcb lcc lce lcf lch lck lcl lcn lco lcr