-er -ic a-a a-b a-c a-i a-q aaa aab aac aae aai aaq aar aau ab- aba abb abc abe abi abq abr abu ac- aca acb acc ace aci acq acr acu aea aeb aec aee aei aeq aer aeu ai- aia aib aic aie aii aiq air aiu aqa aqc aqi aqr ar- ara arb arc are ari arq arr aru au- aua aub auc aue aui aur b-u baa bab bac bae bai baq bar bau bba bbb bbc bbe bbi bbq bbr bbu bca bcb bcc bce bci bcq bcr bcu be- bea beb bec bee bei beq ber beu bi- bia bib bic bie bii bir biu bqc bqe bra brb bre bri brq brr bru bua bub buc bue bui bur buu c-- caa cab cac cae cai caq car cau cba cbb cbc cbe cbi cbq cbr cbu cca ccb ccc cce cci ccr ccu ce- cea ceb cec cee cei ceq cer ceu ci- cia cib cic cie cii ciq cir ciu cqa cqb cqc cqi cra crb crc cre cri crq crr cru cua cub cuc cue cui cuq cur cuu eaa eab eac eae eai ear eau eba ebb ebc ebe ebi ebq ebr ebu ec- eca ecb ecc ece eci ecq ecr ecu eea eeb eec eee eer eia eib eic eie eii eir eiu eqa eqe eqq equ era erb erc ere eri erq err eru eu- eua eub euc eue eui eur ia- iaa iab iac iae iai iaq iar iau iba ibb ibc ibe ibi ibr ibu ica icb icc ice ici icq icr icu ie- iea iec iee iei ier iia iib iic iie iii iir iiu iqa iqc iqe iqu ir- ira irb irc ire iri irq irr iru iu- iua iub iuc iue iui iur qaa qac qar qau qba qbc qbe qbq qca qcc qci qec qee qic qie qir qiu qqq qqu qra qrb qrc qre qri qru qu- qua que qui qur ra- raa rab rac rae rai raq rar rau rba rbb rbc rbe rbi rbr rbu rca rcb rcc rce rci rcr rcu re- rea reb rec ree rei req rer reu ria rib ric rie rii riq rir rqc rra rrb rrc rri rrq rrr rru rua rub ruc rue rui rur ruu ua- uaa uab uac uae uai uaq uar uau uba ubb ubc ube ubi ubr ubu uca ucb ucc uce uci ucr ucu uea ueb uec uee uei uer uia uib uic uie uii uiq uir uiu ur- ura urb urc ure uri urr uru uua uuc uue uur uuu