-al -er -ol a-a a-b a-c a-t aaa aab aac aae aak aal aao aar aas aat aau ab- aba abb abc abe abk abl abo abr abs abt abu ac- aca acb acc ace ack acl aco acr acs act acu aea aeb aec aee aek ael aeo aer aes aet aeu aka akb akc ake akk akl ako akr aks aku al- ala alb alc ale alk all alo alr als alt alu aoa aob aoc aoe aok aol aoo aor aos aot aou ar- ara arb arc are ark arl aro arr ars art aru as- asa asb asc ase ask asl aso asr ass ast asu at- ata atb atc ate atl ato atr ats att atu au- aua aub auc aue auk aul auo aur aus aut b-u baa bab bac bae bak bal bao bar bas bat bau bba bbb bbc bbe bbk bbl bbo bbr bbs bbt bbu bca bcb bcc bce bck bcl bco bcr bcs bct bcu be- bea beb bec bee bek bel beo ber bes bet beu bka bkb bkc bke bkk bkl bko bkr bks bkt bla blb blc ble blk bll blo blr bls blt blu boa bob boc boe bok bol boo bor bos bot bou bra brb bre brk brl bro brr brs brt bru bsa bsb bsc bse bsk bsl bso bsr bss bst bsu bta btb btc bte btk btl bto btr bts btt btu bua bub buc bue buk bul buo bur bus but buu c-- caa cab cac cae cak cal cao car cas cat cau cba cbb cbc cbe cbk cbl cbo cbr cbs cbt cbu cca ccb ccc cce cck ccl cco ccr ccs cct ccu ce- cea ceb cec cee cek cel ceo cer ces cet ceu cka ckb ckc cko cks ckt cl- cla clb clc cle clk cll clo clr cls clt clu co- coa cob coc coe cok col coo cor cos cot cou cra crb crc cre crk crl cro crr crs crt cru csa csb csc cse csk csl cso csr css cst csu cta ctb ctc cte ctk ctl cto ctr cts ctt ctu cua cub cuc cue cuk cul cuo cur cus cut cuu eaa eab eac eae eak eal eao ear eas eat eau eba ebb ebc ebe ebk ebl ebo ebr ebs ebt ebu ec- eca ecb ecc ece eck ecl eco ecr ecs ect ecu eea eeb eec eee eek eel eeo eer ees eet eka ekb ekc eke ekl eko ekr eks ekt eku ela elb elc ele elk ell elo elr els elt elu eo- eoa eob eoc eoe eok eol eoo eor eos eot eou era erb erc ere erk erl ero err ers ert eru es- esa esb esc ese esk esl eso esr ess est esu eta etb etc ete etk etl eto etr ets ett etu eu- eua eub euc eue eul eur eus eut k-t ka- kaa kab kac kae kak kal kao kar kas kat kau kba kbb kbc kbe kbk kbl kbo kbr kbs kbu kca kcb kcc kce kck kcl kcr kcs kct kcu ke- kea keb kec kee kek kel keo ker kes ket kkb kkc kke kkk kkl kkr kks kkt kku kl- kla klb klc klo klr kls klt klu koa kob koc koe kok kol koo kor kos kot kou kra krc krk krl kro krr krs krt kru ksa ksb ksc kse ksk ksl kso ksr kss kst ksu kta ktb ktc kte ktk ktl kto ktr kts ktt ktu kub kuc kue kuk kul kur kus kut kuu la- laa lab lac lae lak lal lao lar las lat lau lba lbb lbc lbe lbk lbl lbo lbr lbs lbt lbu lca lcb lcc lce lck lcl lco lcr lcs lct lcu lea leb lec lee lek lel leo ler les let leu lka lkb lkl lkr lks lkt lla llb llc lle llk lll llo llr lls llt llu loa lob loc loe lok lol loo lor los lot lou lra lrb lrc lrk lro lrr lrs lrt lru lsa lsb lsc lse lsk lsl lso lsr lss lst lsu lta ltb ltc lte ltk ltl lto ltr lts ltt ltu lua lub luc lue luk lul luo lur lus lut luu oaa oab oac oae oak oal oao oar oas oat oau ob- oba obb obc obe obk obl obo obr obs obt obu oc- oca ocb occ ock ocl oco ocr ocs oct ocu oea oeb oec oee oel oeo oer oes oet oka okb okc oke okk okl oko okr oks oku ola olb olc ole olk oll olo ols olt olu oo- ooa oob ooc ook ool ooo oor oos oot or- ora orb orc ore ork orl oro orr ors ort oru os- osa osb osc ose osk osl oso osr oss ost osu ot- ota otb otc ote otk otl oto otr ots ott otu ou- oua ouc oue ouk oul ouo our ous out ra- raa rab rac rae rak ral rao rar ras rat rau rba rbb rbc rbe rbk rbl rbo rbr rbs rbt rbu rca rcb rcc rce rcl rco rcr rcs rct rcu re- rea reb rec ree rek rel reo rer res ret reu rkb rkc rke rkk rko rks rkt rku rla rlc rle rll rlo rlr rls rlt rlu roa rob roc roe rok rol roo ror ros rot rou rra rrb rrc rrk rrl rrr rrs rrt rru rsa rsb rsc rse rsk rsl rso rsr rss rst rsu rta rtb rtc rte rtk rtl rto rtr rts rtt rtu rua rub ruc rue ruk ruo rur rus rut ruu saa sab sac sae sak sal sao sar sas sat sau sba sbb sbc sbe sbk sbl sbo sbr sbs sbt sbu sca scb scc sce sck scl sco scr scs sct scu se- sea seb sec see sek sel seo ser ses set seu sk-