-er -ey -ic a-a a-b a-c a-i a-t aaa aab aac aae aaf aai aao aar aas aat aay ab- aba abb abc abe abf abi abo abr abs abt aby ac- aca acb acc ace acf aci aco acr acs act acy aea aeb aec aee aef aei aeo aer aes aet aey af- afa afb afc afe aff afi afo afr afs aft afy ai- aia aib aic aie aif aii aio air ais ait aiy aoa aob aoc aoe aof aoi aoo aor aos aot ar- ara arb arc are arf ari aro arr ars art ary as- asa asb asc ase asf asi aso asr ass ast asy at- ata atb atc ate atf ati ato atr ats att ay- aya ayc aye ayf ayi ayo ayr ays ayt baa bab bac bae baf bai bao bar bas bat bay bba bbb bbc bbe bbf bbi bbo bbr bbs bbt bby bca bcb bcc bce bcf bci bco bcr bcs bct bcy be- bea beb bec bee bef bei beo ber bes bet bey bfa bfb bfc bfe bff bfi bfo bfr bfs bft bfy bi- bia bib bic bie bif bii bio bir bis bit biy boa bob boc boe bof boi boo bor bos bot boy bra brb bre brf bri bro brr brs brt bry bsa bsb bsc bse bsf bsi bso bsr bss bst bsy bta btb btc bte btf bti bto btr bts btt bty by- bya byc bye byf byi byo byr bys byt c-- caa cab cac cae caf cai cao car cas cat cay cba cbb cbc cbe cbf cbi cbo cbr cbs cbt cby cca ccb ccc cce ccf cci cco ccr ccs cct ce- cea ceb cec cee cef cei ceo cer ces cet cey cfa cfb cfc cfe cff cfi cfo cfr cfs cft ci- cia cib cic cie cif cii cio cir cis cit co- coa cob coc coe cof coi coo cor cos cot coy cra crb crc cre crf cri cro crr crs crt cry csa csb csc cse csf csi cso csr css cst csy cta ctb ctc cte ctf cti cto ctr cts ctt cty cya cyb cyc cye cyf cyo cyr cys cyt eaa eab eac eae eaf eai eao ear eas eat eba ebb ebc ebe ebf ebi ebo ebr ebs ebt eby ec- eca ecb ecc ece ecf eci eco ecr ecs ect eea eeb eec eee eef eeo eer ees eet eey ef- efa efb efc efe eff efi efo efr efs eft eia eib eic eie eif eii eio eir eis eit eo- eoa eob eoc eoe eof eoi eoo eor eos eot era erb erc ere erf eri ero err ers ert ery es- esa esb esc ese esf esi eso esr ess est esy eta etb etc ete etf eti eto etr ets ett ety eya eyc eye eyo eyr eys eyt faa fab fac fae faf fai fao far fas fat fay fba fbb fbc fbe fbf fbi fbo fbr fbs fbt fca fcb fcc fce fcf fci fco fcr fcs fct fcy fea feb fec fee fef fei feo fer fes fet fey ffa ffc ffe fff ffi ffo ffr ffs fft ffy fia fib fic fie fif fii fir fis fit foa fob foc foe fof foi foo for fos fot foy fra frb frc fre frf fri fro frr frs frt fry fsa fsb fsc fse fsf fsi fso fsr fss fst fta ftb ftc fte ftf fti fto ftr fts ftt fty fy- fya fyb fyc fye fyi fyo i-f ia- iaa iab iac iae iaf iai iao iar ias iat iba ibb ibc ibe ibf ibi ibo ibr ibs ibt iby ica icb icc ice icf ici ico icr ics ict icy ie- iea iec iee ief iei ier ies iet iey ifa ifb ifc ife iff ifi ifo ifr ifs ift ify iia iib iic iie iif iii iio iir iis iit io- ioa iob ioc ioe iof ioi ioo ior ios iot ir- ira irb irc ire irf iri iro irr irs irt iry is- isa isb isc ise isf isi iso isr iss ist isy ita itb itc ite itf iti ito its itt ity iya iyc iye iyo iyr iys iyt iyy o-i oaa oab oac oae oaf oai oao oar oas oat ob- oba obb obc obe obf obi obo obr obs obt oby oc- oca ocb occ ocf oci oco ocr ocs oct oea oeb oec oee oef oei oeo oer oes oet oey of- ofa ofb ofc ofe off ofi ofo ofr ofs oft oia oib oic oie oif oii oio oir ois oit oo- ooa oob ooc oof ooi ooo oor oos oot or- ora orb orc ore orf ori oro orr ors ort ory os- osa osb osc ose osf osi oso osr oss ost ot- ota otb otc ote otf oti oto otr ots ott oya oye oyi oyo oys ra- raa rab rac rae raf rai rao rar ras rat ray rba rbb rbc rbe rbf rbi rbo rbr rbs rbt rca rcb rcc rce rcf rci rco rcr rcs rct re- rea reb rec ree ref rei reo rer res ret rey rfa rfb rfc rfe rff rfi rfo rfr rfs rft ria rib ric rie rif rii rio rir ris rit riy roa rob roc roe rof roi roo ror ros rot roy rra rrb rrc rrf rri rrr rrs rrt rsa rsb rsc rse rsf rsi rso rsr rss rst rta rtb rtc rte rtf rti rto rtr rts rtt rty ry- rya ryc rye ryf ryo ryr rys ryy saa sab sac sae saf sai sao sar sas sat say sba sbb sbc sbe sbf sbi sbo sbr sbs sbt sby sca scb scc sce scf sci sco scr scs sct se- sea seb sec see sef sei seo ser ses set sey sfa sfb sfc sfe sff sfi sfo sfr sfs