-al -ol a-a a-b a-c a-t aaa aab aac aad aae aaf aak aal aao aat aau ab- aba abb abc abd abe abf abk abl abo abt abu ac- aca acb acc acd ace acf ack acl aco act acu ad- ada adb adc add ade adf adk adl ado adt adu aea aeb aec aed aee aef aek ael aeo aet aeu af- afa afb afc afd afe aff afk afl afo aft afu aka akb akc akd ake akk akl ako aku al- ala alb alc ald ale alf alk all alo alt alu aoa aob aoc aod aoe aof aok aol aoo aot aou at- ata atb atc atd ate atf atl ato att atu au- aua aub auc aud aue auf auk aul auo aut b-u baa bab bac bad bae baf bak bal bao bat bau bba bbb bbc bbd bbe bbf bbk bbl bbo bbt bbu bca bcb bcc bcd bce bcf bck bcl bco bct bcu bda bdb bdc bdd bde bdf bdk bdl bdo bdt bdu be- bea beb bec bed bee bef bek bel beo bet beu bfa bfb bfc bfd bfe bff bfl bfo bft bfu bka bkb bkc bke bkf bkk bkl bko bkt bla blb blc bld ble blf blk bll blo blt blu boa bob boc bod boe bof bok bol boo bot bou bta btb btc btd bte btf btk btl bto btt btu bua bub buc bud bue buf buk bul buo but buu c-- caa cab cac cad cae caf cak cal cao cat cau cba cbb cbc cbd cbe cbf cbk cbl cbo cbt cbu cca ccb ccc ccd cce ccf cck ccl cco cct ccu cda cdb cdc cdd cde cdf cdk cdl cdo cdt cdu ce- cea ceb cec ced cee cef cek cel ceo cet ceu cfa cfb cfc cfd cfe cff cfk cfl cfo cft cfu cka ckb ckc ckd cko ckt cl- cla clb clc cld cle clf clk cll clo clt clu co- coa cob coc cod coe cof cok col coo cot cou cta ctb ctc ctd cte ctf ctk ctl cto ctt ctu cua cub cuc cud cue cuf cuk cul cuo cut cuu daa dab dac dad dae daf dak dal dao dat dau dba dbb dbc dbd dbe dbf dbk dbl dbo dbt dbu dca dcb dcc dcd dce dcf dck dcl dco dct dcu dda ddb ddc ddd dde ddf ddk ddl ddo ddt ddu de- dea deb dec ded dee def dek del deo det deu dfa dfb dfc dfd dfe dff dfk dfl dfo dft dfu dka dkb dkc dke dkk dkl dko dkt dku dl- dla dlb dlc dld dle dlf dlk dll dlo dlt dlu doa dob doc dod doe dof dok dol doo dot dou dta dtb dtc dtd dte dtf dtk dtl dto dtt dtu dua dub duc dud due duf duk dul duo dut eaa eab eac ead eae eaf eak eal eao eat eau eba ebb ebc ebd ebe ebf ebk ebl ebo ebt ebu ec- eca ecb ecc ecd ece ecf eck ecl eco ect ecu ed- eda edb edc edd ede edf edk edl edo edt edu eea eeb eec eed eee eef eek eel eeo eet ef- efa efb efc efd efe eff efl efo eft eka ekb ekc ekd eke ekf ekl eko ekt eku ela elb elc eld ele elf elk ell elo elt elu eo- eoa eob eoc eod eoe eof eok eol eoo eot eou eta etb etc etd ete etf etk etl eto ett etu eu- eua eub euc eud eue euf eul eut faa fab fac fad fae faf fak fal fao fat fau fba fbb fbc fbd fbe fbf fbk fbl fbo fbt fbu fca fcb fcc fcd fce fcf fck fcl fco fct fcu fda fdb fdc fdd fde fdf fdk fdl fdo fdt fdu fea feb fec fed fee fef fek fel feo fet feu ffa ffc ffd ffe fff ffk ffl ffo fft ffu fka fkb fkc fkf fkk fkl fkt fla flb flc fld fle flf fll flo flt flu foa fob foc foe fof fok fol foo fot fou fta ftb ftc ftd fte ftf ftk ftl fto ftt ftu fua fub fud fue fuf fuk ful fuo fut fuu k-t ka- kaa kab kac kad kae kaf kak kal kao kat kau kba kbb kbc kbd kbe kbf kbk kbl kbo kbu kca kcb kcc kcd kce kck kcl kct kcu kda kdb kdc kde kdf kdk kdl kdo kdt kdu ke- kea keb kec ked kee kef kek kel keo ket kfa kfc kfd kff kfo kfu kkb kkc kke kkk kkl kkt kku kl- kla klb klc kld klf klo klt klu koa kob koc kod koe kof kok kol koo kot kou kta ktb ktc kte ktf ktk ktl kto ktt ktu kub kuc kud kue kuk kul kut kuu la- laa lab lac lad lae laf lak lal lao lat lau lba lbb lbc lbd lbe lbf lbk lbl lbo lbt lbu lca lcb lcc lcd lce lcf lck lcl lco lct lcu lda ldb ldc ldd lde ldf ldk ldl ldo ldt ldu lea leb lec led lee lef lek lel leo let leu lfa lfb lfc lfd lfe lff lfk lfl lfo lft lfu lka lkb lkl lkt lla llb llc lld lle llf llk lll llo llt llu loa lob loc lod loe lof lok lol loo lot lou lta ltb ltc ltd lte ltf ltk ltl lto ltt ltu lua lub luc lud lue luf luk lul luo lut luu oaa oab oac oad oae oaf oak oal oao oat oau ob- oba obb obc obd obe obf obk obl obo obt obu oc- oca ocb occ ocd ocf ock ocl oco oct ocu oda odb odc odd ode odf odl odo odt odu oea oeb oec oed oee oef oel oeo oet of- ofa ofb ofc ofd ofe