-al -er -ic -ol a-a a-b a-c a-i aaa aab aac aae aai aak aal aao aar aau ab- aba abb abc abe abi abk abl abo abr abu ac- aca acb acc ace aci ack acl aco acr acu aea aeb aec aee aei aek ael aeo aer aeu ai- aia aib aic aie aii aik ail aio air aiu aka akb akc ake aki akk akl ako akr aku al- ala alb alc ale ali alk all alo alr alu aoa aob aoc aoe aoi aok aol aoo aor aou ar- ara arb arc are ari ark arl aro arr aru au- aua aub auc aue aui auk aul auo aur b-u baa bab bac bae bai bak bal bao bar bau bba bbb bbc bbe bbi bbk bbl bbo bbr bbu bca bcb bcc bce bci bck bcl bco bcr bcu be- bea beb bec bee bei bek bel beo ber beu bi- bia bib bic bie bii bik bil bio bir biu bka bkb bkc bke bkk bkl bko bkr bla blb blc ble bli blk bll blo blr blu boa bob boc boe boi bok bol boo bor bou bra brb bre bri brk brl bro brr bru bua bub buc bue bui buk bul buo bur buu c-- caa cab cac cae cai cak cal cao car cau cba cbb cbc cbe cbi cbk cbl cbo cbr cbu cca ccb ccc cce cci cck ccl cco ccr ccu ce- cea ceb cec cee cei cek cel ceo cer ceu ci- cia cib cic cie cii cik cil cio cir ciu cka ckb ckc cki cko cl- cla clb clc cle cli clk cll clo clr clu co- coa cob coc coe coi cok col coo cor cou cra crb crc cre cri crk crl cro crr cru cua cub cuc cue cui cuk cul cuo cur cuu eaa eab eac eae eai eak eal eao ear eau eba ebb ebc ebe ebi ebk ebl ebo ebr ebu ec- eca ecb ecc ece eci eck ecl eco ecr ecu eea eeb eec eee eek eel eeo eer eia eib eic eie eii eik eil eio eir eiu eka ekb ekc eke eki ekl eko ekr eku ela elb elc ele eli elk ell elo elr elu eo- eoa eob eoc eoe eoi eok eol eoo eor eou era erb erc ere eri erk erl ero err eru eu- eua eub euc eue eui eul eur ia- iaa iab iac iae iai ial iao iar iau iba ibb ibc ibe ibi ibk ibl ibo ibr ibu ica icb icc ice ici ick icl ico icr icu ie- iea iec iee iei iek iel ier iia iib iic iie iii iil iio iir iiu ika ikb ikc ike iki ikk ikl iko ikr iku il- ila ilb ilc ile ili ilk ill ilo ilr ilu io- ioa iob ioc ioe ioi iol ioo ior iou ir- ira irb irc ire iri irk irl iro irr iru iu- iua iub iuc iue iui iur ka- kaa kab kac kae kai kak kal kao kar kau kba kbb kbc kbe kbi kbk kbl kbo kbr kbu kca kcb kcc kce kci kck kcl kcr kcu ke- kea keb kec kee kei kek kel keo ker kia kib kic kie kii kik kil kio kir kiu kkb kkc kke kki kkk kkl kkr kku kl- kla klb klc kli klo klr klu koa kob koc koe koi kok kol koo kor kou kra krc kri krk krl kro krr kru kub kuc kue kui kuk kul kur kuu la- laa lab lac lae lai lak lal lao lar lau lba lbb lbc lbe lbi lbk lbl lbo lbr lbu lca lcb lcc lce lci lck lcl lco lcr lcu lea leb lec lee lei lek lel leo ler leu lia lib lic lie lii lik lil lio lir liu lka lkb lkl lkr lla llb llc lle lli llk lll llo llr llu loa lob loc loe loi lok lol loo lor lou lra lrb lrc lri lrk lro lrr lru lua lub luc lue lui luk lul luo lur luu o-i oaa oab oac oae oai oak oal oao oar oau ob- oba obb obc obe obi obk obl obo obr obu oc- oca ocb occ oci ock ocl oco ocr ocu oea oeb oec oee oei oel oeo oer oia oib oic oie oii oik oil oio oir oiu oka okb okc oke oki okk okl oko okr oku ola olb olc ole oli olk oll olo olu oo- ooa oob ooc ooi ook ool ooo oor or- ora orb orc ore ori ork orl oro orr oru ou- oua ouc oue oui ouk oul ouo our ra- raa rab rac rae rai rak ral rao rar rau rba rbb rbc rbe rbi rbk rbl rbo rbr rbu rca rcb rcc rce rci rcl rco rcr rcu re- rea reb rec ree rei rek rel reo rer reu ria rib ric rie rii rik ril rio rir rkb rkc rke rkk rko rku rla rlc rle rli rll rlo rlr rlu roa rob roc roe roi rok rol roo ror rou rra rrb rrc rri rrk rrl rrr rru rua rub ruc rue rui ruk ruo rur ruu ua- uaa uab uac uae uai uak ual uao uar uau uba ubb ubc ube ubi ubk ubl ubo ubr ubu uca ucb ucc uce uci uck ucl uco ucr ucu uea ueb uec uee uei uel uer uia uib uic uie uii uil uio uir uiu uka ukb ukc uke uki ukk ukl ukr uku ula ulb ulc ule uli ulk ull ulo ulr ulu uoa uob uoc uoe uok uol uoo uor ur- ura urb urc ure uri urk url uro urr uru uua uuc uue uur uuu

a-ak a-be a-ii a-ok aaaa aaab aaac aaae aaai aaal aaar aaba aabb aabc aabi aabl aaca aacb aacc aace aaci aack aacl aaco aacr aacu aaea aaec aaib aaic