-al -er a-a a-b a-c aaa aab aac aae aag aal aam aar aau ab- aba abb abc abe abg abl abm abr abu ac- aca acb acc ace acg acl acm acr acu aea aeb aec aee aeg ael aem aer aeu ag- aga agb agc age agg agl agm agr agu al- ala alb alc ale alg all alm alr alu ama amb amc ame amg aml amm amr amu ar- ara arb arc are arg arl arm arr aru au- aua aub auc aue aug aul aum aur b-u baa bab bac bae bag bal bam bar bau bba bbb bbc bbe bbg bbl bbm bbr bbu bca bcb bcc bce bcg bcl bcm bcr bcu be- bea beb bec bee beg bel bem ber beu bga bgb bgc bge bgg bgl bgm bgr bgu bla blb blc ble blg bll blm blr blu bma bmb bmc bme bmg bml bmm bmr bmu bra brb bre brg brl brm brr bru bua bub buc bue bug bul bum bur buu c-- caa cab cac cae cag cal cam car cau cba cbb cbc cbe cbg cbl cbm cbr cbu cca ccb ccc cce ccg ccl ccm ccr ccu ce- cea ceb cec cee ceg cel cem cer ceu cga cgb cgc cge cgg cgl cgm cgr cgu cl- cla clb clc cle clg cll clm clr clu cma cmb cmc cme cmg cml cmm cmr cmu cra crb crc cre crg crl crm crr cru cua cub cuc cue cug cul cum cur cuu eaa eab eac eae eag eal eam ear eau eba ebb ebc ebe ebg ebl ebm ebr ebu ec- eca ecb ecc ece ecg ecl ecm ecr ecu eea eeb eec eee eeg eel eem eer ega egb egc ege egg egl egm egr egu ela elb elc ele elg ell elm elr elu em- ema emb emc eme emg eml emm emr emu era erb erc ere erg erl erm err eru eu- eua eub euc eue eug eul eur gaa gab gac gae gag gal gam gar gau gba gbc gbe gbg gbl gbm gbr gbu gca gcb gcc gce gcg gcl gcm gcr gcu ge- gea geb gec gee geg gel gem ger geu gga ggb ggc ggg ggm ggr ggu gla glb glc gle glg gll glm glr glu gma gmb gmc gme gmg gml gmm gmr gra grb grc gre grg grl grm grr gru gu- gua gub guc gue gug gul gum gur guu la- laa lab lac lae lag lal lam lar lau lba lbb lbc lbe lbg lbl lbm lbr lbu lca lcb lcc lce lcg lcl lcm lcr lcu lea leb lec lee leg lel lem ler leu lga lgb lgc lge lgg lgl lgm lgr lgu lla llb llc lle llg lll llm llr llu lma lmb lmc lme lmg lml lmm lmr lmu lra lrb lrc lrg lrm lrr lru lua lub luc lue lug lul lum lur luu m-r maa mab mac mae mag mal mam mar mau mba mbb mbc mbe mbg mbl mbm mbr mbu mc- mca mcb mcc mce mcg mcl mcm mcr mcu mea meb mec mee meg mel mem mer meu mga mgb mgc mge mgl mgm mgr mgu mla mlb mlc mle mlg mll mlm mlr mlu mma mmb mmc mme mmg mml mmm mmr mmu mra mrb mrc mre mrg mrl mrm mrr mru mua mub muc mue mug mul mum mur muu ra- raa rab rac rae rag ral ram rar rau rba rbb rbc rbe rbg rbl rbm rbr rbu rca rcb rcc rce rcg rcl rcm rcr rcu re- rea reb rec ree reg rel rem rer reu rga rgb rgc rge rgg rgr rla rlc rle rlg rll rlm rlr rlu rma rmb rmc rme rmg rml rmm rmr rra rrb rrc rrg rrl rrm rrr rru rua rub ruc rue rug rum rur ruu ua- uaa uab uac uae uag ual uam uar uau uba ubb ubc ube ubg ubl ubr ubu uca ucb ucc uce ucg ucl ucm ucr ucu uea ueb uec uee ueg uel uem uer uga ugb ugc uge ugg ugl ugm ugr ugu ula ulb ulc ule ulg ull ulm ulr ulu um- uma umb umc ume umg uml umm umr umu ur- ura urb urc ure urg url urm urr uru uua uuc uue uug uum uur uuu