-er -ic a-a a-c a-i aaa aac aae aaf aag aai aak aar aas aau ac- aca acc ace acf acg aci ack acr acs acu aea aec aee aef aeg aei aek aer aes aeu af- afa afc afe aff afg afi afk afr afs afu ag- aga agc age agf agg agi agk agr ags agu ai- aia aic aie aif aig aii aik air ais aiu aka akc ake akg aki akk akr aks aku ar- ara arc are arf arg ari ark arr ars aru as- asa asc ase asf asg asi ask asr ass asu au- aua auc aue auf aug aui auk aur aus c-- caa cac cae caf cag cai cak car cas cau cca ccc cce ccf ccg cci cck ccr ccs ccu ce- cea cec cee cef ceg cei cek cer ces ceu cfa cfc cfe cff cfg cfi cfk cfr cfs cfu cga cgc cge cgg cgi cgr cgs cgu ci- cia cic cie cif cig cii cik cir cis ciu cka ckc cki cks cra crc cre crf crg cri crk crr crs cru csa csc cse csf csg csi csk csr css csu cua cuc cue cuf cug cui cuk cur cus cuu eaa eac eae eaf eag eai eak ear eas eau ec- eca ecc ece ecf ecg eci eck ecr ecs ecu eea eec eee eef eeg eek eer ees ef- efa efc efe eff efg efi efr efs ega egc ege egf egg egi egr egs egu eia eic eie eif eig eii eik eir eis eiu eka ekc eke ekf ekg eki ekr eks eku era erc ere erf erg eri erk err ers eru es- esa esc ese esf esg esi esk esr ess esu eu- eua euc eue euf eug eui eur eus faa fac fae faf fag fai fak far fas fau fca fcc fce fcf fcg fci fck fcr fcs fcu fea fec fee fef feg fei fek fer fes feu ffa ffc ffe fff ffg ffi ffk ffr ffs ffu fga fgc fge fgf fgg fgi fgr fgs fia fic fie fif fig fii fik fir fis fiu fka fkc fkf fkg fki fkk fra frc fre frf frg fri frk frr frs fru fsa fsc fse fsf fsg fsi fsk fsr fss fsu fua fue fuf fug fui fuk fur fus fuu gaa gac gae gaf gag gai gak gar gas gau gca gcc gce gcf gcg gci gck gcr gcs gcu ge- gea gec gee gef geg gei gek ger ges geu gfa gfc gfe gff gfi gfk gfr gfs gga ggc ggg ggi ggr ggs ggu gia gic gie gif gig gii gik gir gis giu gka gks gra grc gre grf grg gri grk grr grs gru gsa gsc gse gsf gsg gsi gsk gsr gss gsu gu- gua guc gue guf gug gui guk gur gus guu i-f ia- iaa iac iae iaf iag iai iar ias iau ica icc ice icf icg ici ick icr ics icu ie- iea iec iee ief ieg iei iek ier ies ifa ifc ife iff ifg ifi ifr ifs ifu iga igc ige igf igg igi igk igr igs igu iia iic iie iif iii iir iis iiu ika ikc ike ikf iki ikk ikr iks iku ir- ira irc ire irf irg iri irk irr irs iru is- isa isc ise isf isg isi isk isr iss isu iu- iua iuc iue iug iui iur ius ka- kaa kac kae kaf kag kai kak kar kas kau kca kcc kce kcg kci kck kcr kcs kcu ke- kea kec kee kef keg kei kek ker kes kfa kfc kff kfg kfi kfs kfu kga kgc kgf kgi kgs kgu kia kic kie kif kig kii kik kir kis kiu kkc kke kki kkk kkr kks kku kra krc krf krg kri krk krr krs kru ksa ksc kse ksf ksg ksi ksk ksr kss ksu kuc kue kug kui kuk kur kus kuu ra- raa rac rae raf rag rai rak rar ras rau rca rcc rce rcf rcg rci rcr rcs rcu re- rea rec ree ref reg rei rek rer res reu rfa rfc rfe rff rfg rfi rfk rfr rfs rfu rga rgc rge rgf rgg rgi rgk rgr rgs ria ric rie rif rig rii rik rir ris rkc rke rkf rkg rkk rks rku rra rrc rrf rrg rri rrk rrr rrs rru rsa rsc rse rsf rsg rsi rsk rsr rss rsu rua ruc rue ruf rug rui ruk rur rus ruu saa sac sae saf sag sai sak sar sas sau sca scc sce scf scg sci sck scr scs scu se- sea sec see sef seg sei sek ser ses seu sfa sfc sfe sff sfg sfi sfk sfr sfs sfu sga sgc sge sgf sgg sgi sgk sgr sgs sgu sia sic sie sif sig sii sik sir sis siu sk- ska skc ske skf skg ski skk skr sks sku sr- sra src sre srf srg sri srk srr srs ss- ssa ssc sse ssf ssg ssi ssk ssr sss ssu sua suc sue suf sug sui suk sur sus suu ua- uaa uac uae uaf uag uai uak uar uas uau uca ucc uce ucf ucg uci uck ucr ucs ucu uea uec uee uef ueg uei uer ues ufa ufc ufe uff ufg ufi ufr ufs ufu uga ugc uge ugf ugg ugi ugk ugr ugs ugu uia uic uie uif uig uii uir uis uiu uka ukc uke ukf uki ukk ukr uku ur- ura urc ure urf urg uri urk urr urs uru usa usc use usf usg usi usk usr uss usu uua uuc uue uug uur uus uuu