-er -ic a-a a-b a-c a-i a-q a-t aaa aab aac aae aai aaq aar aat aau ab- aba abb abc abe abi abq abr abt abu ac- aca acb acc ace aci acq acr act acu aea aeb aec aee aei aeq aer aet aeu ai- aia aib aic aie aii aiq air ait aiu aqa aqc aqi aqr aqt ar- ara arb arc are ari arq arr art aru at- ata atb atc ate ati atr att atu au- aua aub auc aue aui aur aut b-u baa bab bac bae bai baq bar bat bau bba bbb bbc bbe bbi bbq bbr bbt bbu bca bcb bcc bce bci bcq bcr bct bcu be- bea beb bec bee bei beq ber bet beu bi- bia bib bic bie bii bir bit biu bqc bqe bqt bra brb bre bri brq brr brt bru bta btb btc bte bti btq btr btt btu bua bub buc bue bui bur but buu c-- caa cab cac cae cai caq car cat cau cba cbb cbc cbe cbi cbq cbr cbt cbu cca ccb ccc cce cci ccr cct ccu ce- cea ceb cec cee cei ceq cer cet ceu ci- cia cib cic cie cii ciq cir cit ciu cqa cqb cqc cqi cqt cra crb crc cre cri crq crr crt cru cta ctb ctc cte cti ctq ctr ctt ctu cua cub cuc cue cui cuq cur cut cuu eaa eab eac eae eai ear eat eau eba ebb ebc ebe ebi ebq ebr ebt ebu ec- eca ecb ecc ece eci ecq ecr ect ecu eea eeb eec eee eer eet eia eib eic eie eii eir eit eiu eqa eqe eqq eqt equ era erb erc ere eri erq err ert eru eta etb etc ete eti etr ett etu eu- eua eub euc eue eui eur eut ia- iaa iab iac iae iai iaq iar iat iau iba ibb ibc ibe ibi ibr ibt ibu ica icb icc ice ici icq icr ict icu ie- iea iec iee iei ier iet iia iib iic iie iii iir iit iiu iqa iqc iqe iqt iqu ir- ira irb irc ire iri irq irr irt iru ita itb itc ite iti itq itt itu iu- iua iub iuc iue iui iur iut qaa qac qar qat qau qba qbc qbe qbq qca qcc qci qct qec qee qet qic qie qir qit qiu qqq qqu qra qrb qrc qre qri qrt qru qta qtc qti qtq qtr qu- qua que qui qur qut ra- raa rab rac rae rai raq rar rat rau rba rbb rbc rbe rbi rbr rbt rbu rca rcb rcc rce rci rcr rct rcu re- rea reb rec ree rei req rer ret reu ria rib ric rie rii riq rir rit rqc rra rrb rrc rri rrq rrr rrt rru rta rtb rtc rte rti rtq rtr rtt rtu rua rub ruc rue rui rur rut ruu taa tab tac tae tai taq tar tat tau tba tbb tbc tbe tbi tbr tbt tbu tca tcb tcc tce tci tcr tct tcu te- tea teb tec tee tei teq ter tet teu tia tib tic tie tii tir tit tiu tra trb trc tre tri trq trr trt tru tta ttb ttc tte tti ttr ttt ttu tua tub tuc tue tui tur tut tuu ua- uaa uab uac uae uai uaq uar uat uau uba ubb ubc ube ubi ubr ubt ubu uca ucb ucc uce uci ucr uct ucu uea ueb uec uee uei uer uet uia uib uic uie uii uiq uir uit uiu ur- ura urb urc ure uri urr urt uru uta utb utc ute uti utr utt utu uua uuc uue uur uut uuu