-al -er -ol a-a a-b aaa aab aae aaf aah aak aal aao aar aau ab- aba abb abe abf abh abk abl abo abr abu aea aeb aee aef aeh aek ael aeo aer aeu af- afa afb afe aff afh afk afl afo afr afu aha ahb ahe ahf ahh ahk ahl aho ahr ahu aka akb ake akh akk akl ako akr aku al- ala alb ale alf alh alk all alo alr alu aoa aob aoe aof aoh aok aol aoo aor aou ar- ara arb are arf arh ark arl aro arr aru au- aua aub aue auf auh auk aul auo aur b-u baa bab bae baf bah bak bal bao bar bau bba bbb bbe bbf bbh bbk bbl bbo bbr bbu be- bea beb bee bef beh bek bel beo ber beu bfa bfb bfe bff bfh bfl bfo bfr bfu bha bhb bhe bhf bhh bhk bhl bho bhr bhu bka bkb bke bkf bkk bkl bko bkr bla blb ble blf blh blk bll blo blr blu boa bob boe bof boh bok bol boo bor bou bra brb bre brf brh brk brl bro brr bru bua bub bue buf buh buk bul buo bur buu eaa eab eae eaf eah eak eal eao ear eau eba ebb ebe ebf ebh ebk ebl ebo ebr ebu eea eeb eee eef eek eel eeo eer ef- efa efb efe eff efh efl efo efr eha ehb ehe ehf ehh ehl eho ehr ehu eka ekb eke ekf ekh ekl eko ekr eku ela elb ele elf elh elk ell elo elr elu eo- eoa eob eoe eof eoh eok eol eoo eor eou era erb ere erf erh erk erl ero err eru eu- eua eub eue euf eul eur faa fab fae faf fah fak fal fao far fau fba fbb fbe fbf fbh fbk fbl fbo fbr fbu fea feb fee fef feh fek fel feo fer feu ffa ffe fff ffh ffk ffl ffo ffr ffu fha fhb fhe fhf fhh fhl fho fhr fka fkb fkf fkk fkl fla flb fle flf fll flo flr flu foa fob foe fof foh fok fol foo for fou fra frb fre frf frh frk frl fro frr fru fua fub fue fuf fuk ful fuo fur fuu haa hab hae haf hah hak hal hao har hau hba hbb hbe hbf hbh hbk hbl hbo hbr hbu he- hea heb hee hef heh hek hel heo her heu hfa hfb hfe hff hfh hfk hfl hfo hfr hfu hha hhb hhe hhf hhh hhk hhl hho hhr hhu hka hkb hkf hkh hkk hkl hko hkr hku hla hlb hle hlf hlh hll hlo hlr hlu hoa hob hoe hof hoh hok hol hoo hor hou hr- hra hrb hre hrf hrh hrk hrl hro hrr hru hua hub hue huf huh huk hul huo hur huu ka- kaa kab kae kaf kah kak kal kao kar kau kba kbb kbe kbf kbh kbk kbl kbo kbr kbu ke- kea keb kee kef keh kek kel keo ker kfa kff kfh kfo kfu kha khe khf khh khk kho khr khu kkb kke kkh kkk kkl kkr kku kl- kla klb klf klh klo klr klu koa kob koe kof koh kok kol koo kor kou kra krf krk krl kro krr kru kub kue kuh kuk kul kur kuu la- laa lab lae laf lah lak lal lao lar lau lba lbb lbe lbf lbh lbk lbl lbo lbr lbu lea leb lee lef leh lek lel leo ler leu lfa lfb lfe lff lfh lfk lfl lfo lfr lfu lha lhb lhf lhh lhk lho lhr lhu lka lkb lkh lkl lkr lla llb lle llf llk lll llo llr llu loa lob loe lof loh lok lol loo lor lou lra lrb lrf lrh lrk lro lrr lru lua lub lue luf luh luk lul luo lur luu oaa oab oae oaf oah oak oal oao oar oau ob- oba obb obe obf obh obk obl obo obr obu oea oeb oee oef oeh oel oeo oer of- ofa ofb ofe off ofl ofo ofr ofu oha ohe ohf ohh ohl oho ohr ohu oka okb oke okk okl oko okr oku ola olb ole olf olk oll olo olu oo- ooa oob oof ooh ook ool ooo oor or- ora orb ore orf orh ork orl oro orr oru ou- oua oue ouf ouh ouk oul ouo our ra- raa rab rae raf rah rak ral rao rar rau rba rbb rbe rbf rbh rbk rbl rbo rbr rbu re- rea reb ree ref reh rek rel reo rer reu rfa rfb rfe rff rfh rfk rfl rfo rfr rfu rh- rha rhb rhe rhf rhh rhl rho rhr rhu rkb rke rkf rkk rko rku rla rle rlf rlh rll rlo rlr rlu roa rob roe rof roh rok rol roo ror rou rra rrb rrf rrh rrk rrl rrr rru rua rub rue ruf ruh ruk ruo rur ruu ua- uaa uab uae uaf uah uak ual uao uar uau uba ubb ube ubf ubh ubk ubl ubo ubr ubu uea ueb uee uef ueh uel uer ufa ufe uff ufh ufl ufo ufr ufu uha uhb uhe uhf uhh uhl uho uhr uhu uka ukb uke ukf ukk ukl ukr uku ula ulb ule ulf ulk ull ulo ulr ulu uoa uob uoe uok uol uoo uor ur- ura urb ure urf urk url uro urr uru uua uue uur uuu