-er -ic a-a a-b a-c a-i a-t aaa aab aac aae aag aai aam aar aat aau ab- aba abb abc abe abg abi abm abr abt abu ac- aca acb acc ace acg aci acm acr act acu aea aeb aec aee aeg aei aem aer aet aeu ag- aga agb agc age agg agi agm agr agt agu ai- aia aib aic aie aig aii aim air ait aiu ama amb amc ame amg ami amm amr amt amu ar- ara arb arc are arg ari arm arr art aru at- ata atb atc ate atg ati atm atr att atu au- aua aub auc aue aug aui aum aur aut b-u baa bab bac bae bag bai bam bar bat bau bba bbb bbc bbe bbg bbi bbm bbr bbt bbu bca bcb bcc bce bcg bci bcm bcr bct bcu be- bea beb bec bee beg bei bem ber bet beu bga bgb bgc bge bgg bgi bgm bgr bgt bgu bi- bia bib bic bie big bii bim bir bit biu bma bmb bmc bme bmg bmi bmm bmr bmt bmu bra brb bre brg bri brm brr brt bru bta btb btc bte btg bti btm btr btt btu bua bub buc bue bug bui bum bur but buu c-- caa cab cac cae cag cai cam car cat cau cba cbb cbc cbe cbg cbi cbm cbr cbt cbu cca ccb ccc cce ccg cci ccm ccr cct ccu ce- cea ceb cec cee ceg cei cem cer cet ceu cga cgb cgc cge cgg cgi cgm cgr cgt cgu ci- cia cib cic cie cig cii cim cir cit ciu cma cmb cmc cme cmg cmi cmm cmr cmt cmu cra crb crc cre crg cri crm crr crt cru cta ctb ctc cte ctg cti ctm ctr ctt ctu cua cub cuc cue cug cui cum cur cut cuu eaa eab eac eae eag eai eam ear eat eau eba ebb ebc ebe ebg ebi ebm ebr ebt ebu ec- eca ecb ecc ece ecg eci ecm ecr ect ecu eea eeb eec eee eeg eem eer eet ega egb egc ege egg egi egm egr egt egu eia eib eic eie eig eii eim eir eit eiu em- ema emb emc eme emg emi emm emr emt emu era erb erc ere erg eri erm err ert eru eta etb etc ete etg eti etm etr ett etu eu- eua eub euc eue eug eui eur eut gaa gab gac gae gag gai gam gar gat gau gba gbc gbe gbg gbi gbm gbr gbt gbu gca gcb gcc gce gcg gci gcm gcr gct gcu ge- gea geb gec gee geg gei gem ger get geu gga ggb ggc ggg ggi ggm ggr ggt ggu gia gib gic gie gig gii gim gir git giu gma gmb gmc gme gmg gmi gmm gmr gmt gra grb grc gre grg gri grm grr grt gru gta gtb gtc gte gtg gti gtm gtr gtt gtu gu- gua gub guc gue gug gui gum gur gut guu ia- iaa iab iac iae iag iai iam iar iat iau iba ibb ibc ibe ibg ibi ibm ibr ibt ibu ica icb icc ice icg ici icm icr ict icu ie- iea iec iee ieg iei iem ier iet iga igb igc ige igg igi igm igr igt igu iia iib iic iie iii iim iir iit iiu im- ima imb imc ime img imi imm imt imu ir- ira irb irc ire irg iri irm irr irt iru ita itb itc ite itg iti itm itt itu iu- iua iub iuc iue iug iui ium iur iut m-r maa mab mac mae mag mai mam mar mat mau mba mbb mbc mbe mbg mbi mbm mbr mbt mbu mc- mca mcb mcc mce mcg mci mcm mcr mct mcu mea meb mec mee meg mei mem mer met meu mga mgb mgc mge mgi mgm mgr mgt mgu mi- mia mib mic mie mig mii mim mir mit miu mma mmb mmc mme mmg mmi mmm mmr mmt mmu mra mrb mrc mre mrg mri mrm mrr mrt mru mta mtb mtc mte mtg mti mtm mtr mtt mtu mua mub muc mue mug mui mum mur mut muu ra- raa rab rac rae rag rai ram rar rat rau rba rbb rbc rbe rbg rbi rbm rbr rbt rbu rca rcb rcc rce rcg rci rcm rcr rct rcu re- rea reb rec ree reg rei rem rer ret reu rga rgb rgc rge rgg rgi rgr rgt ria rib ric rie rig rii rim rir rit rma rmb rmc rme rmg rmi rmm rmr rmt rra rrb rrc rrg rri rrm rrr rrt rru rta rtb rtc rte rtg rti rtm rtr rtt rtu rua rub ruc rue rug rui rum rur rut ruu taa tab tac tae tag tai tam tar tat tau tba tbb tbc tbe tbg tbi tbm tbr tbt tbu tca tcb tcc tce tcg tci tcm tcr tct tcu te- tea teb tec tee teg tei tem ter tet teu tga tgb tgc tge tgg tgi tgm tgr tgt tgu tia tib tic tie tig tii tim tir tit tiu tma tmb tmc tme tmg tmi tmm tmr tmt tmu tra trb trc tre trg tri trm trr trt tru tta ttb ttc tte ttg tti ttm ttr ttt ttu tua tub tuc tue tug tui tum tur tut tuu ua- uaa uab uac uae uag uai uam uar uat uau uba ubb ubc ube ubg ubi ubr ubt ubu uca ucb ucc uce ucg uci ucm ucr uct ucu uea ueb uec uee ueg uei uem uer uet uga ugb ugc uge ugg ugi ugm ugr ugt ugu uia uib uic uie uig uii uim uir uit uiu um- uma umb umc ume umg umi umm umr umt umu ur- ura urb urc ure urg uri urm urr urt uru uta utb utc ute