-er -ic a-a a-b a-c a-i aaa aab aac aae aaf aai aar aas aau ab- aba abb abc abe abf abi abr abs abu ac- aca acb acc ace acf aci acr acs acu aea aeb aec aee aef aei aer aes aeu af- afa afb afc afe aff afi afr afs afu ai- aia aib aic aie aif aii air ais aiu ar- ara arb arc are arf ari arr ars aru as- asa asb asc ase asf asi asr ass asu au- aua aub auc aue auf aui aur aus b-u baa bab bac bae baf bai bar bas bau bba bbb bbc bbe bbf bbi bbr bbs bbu bca bcb bcc bce bcf bci bcr bcs bcu be- bea beb bec bee bef bei ber bes beu bfa bfb bfc bfe bff bfi bfr bfs bfu bi- bia bib bic bie bif bii bir bis biu bra brb bre brf bri brr brs bru bsa bsb bsc bse bsf bsi bsr bss bsu bua bub buc bue buf bui bur bus buu c-- caa cab cac cae caf cai car cas cau cba cbb cbc cbe cbf cbi cbr cbs cbu cca ccb ccc cce ccf cci ccr ccs ccu ce- cea ceb cec cee cef cei cer ces ceu cfa cfb cfc cfe cff cfi cfr cfs cfu ci- cia cib cic cie cif cii cir cis ciu cra crb crc cre crf cri crr crs cru csa csb csc cse csf csi csr css csu cua cub cuc cue cuf cui cur cus cuu eaa eab eac eae eaf eai ear eas eau eba ebb ebc ebe ebf ebi ebr ebs ebu ec- eca ecb ecc ece ecf eci ecr ecs ecu eea eeb eec eee eef eer ees ef- efa efb efc efe eff efi efr efs eia eib eic eie eif eii eir eis eiu era erb erc ere erf eri err ers eru es- esa esb esc ese esf esi esr ess esu eu- eua eub euc eue euf eui eur eus faa fab fac fae faf fai far fas fau fba fbb fbc fbe fbf fbi fbr fbs fbu fca fcb fcc fce fcf fci fcr fcs fcu fea feb fec fee fef fei fer fes feu ffa ffc ffe fff ffi ffr ffs ffu fia fib fic fie fif fii fir fis fiu fra frb frc fre frf fri frr frs fru fsa fsb fsc fse fsf fsi fsr fss fsu fua fub fue fuf fui fur fus fuu i-f ia- iaa iab iac iae iaf iai iar ias iau iba ibb ibc ibe ibf ibi ibr ibs ibu ica icb icc ice icf ici icr ics icu ie- iea iec iee ief iei ier ies ifa ifb ifc ife iff ifi ifr ifs ifu iia iib iic iie iif iii iir iis iiu ir- ira irb irc ire irf iri irr irs iru is- isa isb isc ise isf isi isr iss isu iu- iua iub iuc iue iui iur ius ra- raa rab rac rae raf rai rar ras rau rba rbb rbc rbe rbf rbi rbr rbs rbu rca rcb rcc rce rcf rci rcr rcs rcu re- rea reb rec ree ref rei rer res reu rfa rfb rfc rfe rff rfi rfr rfs rfu ria rib ric rie rif rii rir ris rra rrb rrc rrf rri rrr rrs rru rsa rsb rsc rse rsf rsi rsr rss rsu rua rub ruc rue ruf rui rur rus ruu saa sab sac sae saf sai sar sas sau sba sbb sbc sbe sbf sbi sbr sbs sbu sca scb scc sce scf sci scr scs scu se- sea seb sec see sef sei ser ses seu sfa sfb sfc sfe sff sfi sfr sfs sfu sia sib sic sie sif sii sir sis siu sr- sra srb src sre srf sri srr srs ss- ssa ssb ssc sse ssf ssi ssr sss ssu sua sub suc sue suf sui sur sus suu ua- uaa uab uac uae uaf uai uar uas uau uba ubb ubc ube ubf ubi ubr ubs ubu uca ucb ucc uce ucf uci ucr ucs ucu uea ueb uec uee uef uei uer ues ufa ufc ufe uff ufi ufr ufs ufu uia uib uic uie uif uii uir uis uiu ur- ura urb urc ure urf uri urr urs uru usa usb usc use usf usi usr uss usu uua uuc uue uur uus uuu

-ase a-be a-fu a-ii aaaa aaab aaac aaae aaaf aaai aaar aaas aaba aabb aabc aabi aaca aacb aacc aace aacf aaci aacr aacs aacu aaea aaec aaes aafa aafb aafc aaff aafi aaib aaic aaii aais aara aarc aare aari aars aaru aasa aasc aase aasf aasi aass aasu aaus abaa abab abac abae abaf abai abar abas abau abb- abba abbb abbe abbi abbr abbs abca abcb abcc abcf abci abcr abcs abec abee aber abes abff abia abib abic abie abir abis abiu abra abrc abri abrs abs- absa abse absf absi abss absu abua abue abuf abus acaa acab acac acae acai acar acas acba acca accc acce accf acci accs accu ace- acea acec acer aces acfc acfe acfi acfs aci- acia acic acie acif acir acis acr- acra acrc acre acri acrr acrs acsa acsc acse acsi acss acu- acue acuf acur acus aeac aeaf aeas aebi aebs aecb aeci aeer aer- aera aerc aeri aers aesc aess afaa afar afbs afca afcb afcc afci afcs afcu afee afer afes affa affc affi affs afia afib afif afir afis afr- afra afrc afre afri afrs afru afsa afsb afsc afua afue afus aiai aias aiba aica aicc aice aicf aicr aics aiea aiee aiff aifs aiia aiib aiic aiir aira aire airi airs aisa aisb aise aisi aisr aiui arab arac arae araf arai arar aras arau arba arbe arbi arbs arc- arca arce arci arcs area arec aree aref arei ares areu arfa arfb arfc arff arfs arfu