-al -er -ol a-a a-b a-c a-t aaa aab aac aae aal aao aar aat aau ab- aba abb abc abe abl abo abr abt abu ac- aca acb acc ace acl aco acr act acu aea aeb aec aee ael aeo aer aet aeu al- ala alb alc ale all alo alr alt alu aoa aob aoc aoe aol aoo aor aot aou ar- ara arb arc are arl aro arr art aru at- ata atb atc ate atl ato atr att atu au- aua aub auc aue aul auo aur aut b-u baa bab bac bae bal bao bar bat bau bba bbb bbc bbe bbl bbo bbr bbt bbu bca bcb bcc bce bcl bco bcr bct bcu be- bea beb bec bee bel beo ber bet beu bla blb blc ble bll blo blr blt blu boa bob boc boe bol boo bor bot bou bra brb bre brl bro brr brt bru bta btb btc bte btl bto btr btt btu bua bub buc bue bul buo bur but buu c-- caa cab cac cae cal cao car cat cau cba cbb cbc cbe cbl cbo cbr cbt cbu cca ccb ccc cce ccl cco ccr cct ccu ce- cea ceb cec cee cel ceo cer cet ceu cl- cla clb clc cle cll clo clr clt clu co- coa cob coc coe col coo cor cot cou cra crb crc cre crl cro crr crt cru cta ctb ctc cte ctl cto ctr ctt ctu cua cub cuc cue cul cuo cur cut cuu eaa eab eac eae eal eao ear eat eau eba ebb ebc ebe ebl ebo ebr ebt ebu ec- eca ecb ecc ece ecl eco ecr ect ecu eea eeb eec eee eel eeo eer eet ela elb elc ele ell elo elr elt elu eo- eoa eob eoc eoe eol eoo eor eot eou era erb erc ere erl ero err ert eru eta etb etc ete etl eto etr ett etu eu- eua eub euc eue eul eur eut la- laa lab lac lae lal lao lar lat lau lba lbb lbc lbe lbl lbo lbr lbt lbu lca lcb lcc lce lcl lco lcr lct lcu lea leb lec lee lel leo ler let leu lla llb llc lle lll llo llr llt llu loa lob loc loe lol loo lor lot lou lra lrb lrc lro lrr lrt lru lta ltb ltc lte ltl lto ltr ltt ltu lua lub luc lue lul luo lur lut luu oaa oab oac oae oal oao oar oat oau ob- oba obb obc obe obl obo obr obt obu oc- oca ocb occ ocl oco ocr oct ocu oea oeb oec oee oel oeo oer oet ola olb olc ole oll olo olt olu oo- ooa oob ooc ool ooo oor oot or- ora orb orc ore orl oro orr ort oru ot- ota otb otc ote otl oto otr ott otu ou- oua ouc oue oul ouo our out ra- raa rab rac rae ral rao rar rat rau rba rbb rbc rbe rbl rbo rbr rbt rbu rca rcb rcc rce rcl rco rcr rct rcu re- rea reb rec ree rel reo rer ret reu rla rlc rle rll rlo rlr rlt rlu roa rob roc roe rol roo ror rot rou rra rrb rrc rrl rrr rrt rru rta rtb rtc rte rtl rto rtr rtt rtu rua rub ruc rue ruo rur rut ruu taa tab tac tae tal tao tar tat tau tba tbb tbc tbe tbl tbo tbr tbt tbu tca tcb tcc tce tcl tco tcr tct tcu te- tea teb tec tee tel teo ter tet teu tla tlc tle tll tlo tlr tlt tlu to- toa tob toc toe tol too tor tot tou tra trb trc tre trl tro trr trt tru tta ttb ttc tte ttl tto ttr ttt ttu tua tub tuc tue tul tuo tur tut tuu ua- uaa uab uac uae ual uao uar uat uau uba ubb ubc ube ubl ubo ubr ubt ubu uca ucb ucc uce ucl uco ucr uct ucu uea ueb uec uee uel uer uet ula ulb ulc ule ull ulo ulr ult ulu uoa uob uoc uoe uol uoo uor uot ur- ura urb urc ure url uro urr urt uru uta utb utc ute utl uto utr utt utu uua uuc uue uur uut uuu