-er a-a a-i aaa aae aaf aai aak aar aas aau aea aee aef aei aek aer aes aeu af- afa afe aff afi afk afr afs afu ai- aia aie aif aii aik air ais aiu aka ake aki akk akr aks aku ar- ara are arf ari ark arr ars aru as- asa ase asf asi ask asr ass asu au- aua aue auf aui auk aur aus eaa eae eaf eai eak ear eas eau eea eee eef eek eer ees ef- efa efe eff efi efr efs eia eie eif eii eik eir eis eiu eka eke ekf eki ekr eks eku era ere erf eri erk err ers eru es- esa ese esf esi esk esr ess esu eu- eua eue euf eui eur eus faa fae faf fai fak far fas fau fea fee fef fei fek fer fes feu ffa ffe fff ffi ffk ffr ffs ffu fia fie fif fii fik fir fis fiu fka fkf fki fkk fra fre frf fri frk frr frs fru fsa fse fsf fsi fsk fsr fss fsu fua fue fuf fui fuk fur fus fuu i-f ia- iaa iae iaf iai iar ias iau ie- iea iee ief iei iek ier ies ifa ife iff ifi ifr ifs ifu iia iie iif iii iir iis iiu ika ike ikf iki ikk ikr iks iku ir- ira ire irf iri irk irr irs iru is- isa ise isf isi isk isr iss isu iu- iua iue iui iur ius ka- kaa kae kaf kai kak kar kas kau ke- kea kee kef kei kek ker kes kfa kff kfi kfs kfu kia kie kif kii kik kir kis kiu kke kki kkk kkr kks kku kra krf kri krk krr krs kru ksa kse ksf ksi ksk ksr kss ksu kue kui kuk kur kus kuu ra- raa rae raf rai rak rar ras rau re- rea ree ref rei rek rer res reu rfa rfe rff rfi rfk rfr rfs rfu ria rie rif rii rik rir ris rke rkf rkk rks rku rra rrf rri rrk rrr rrs rru rsa rse rsf rsi rsk rsr rss rsu rua rue ruf rui ruk rur rus ruu saa sae saf sai sak sar sas sau se- sea see sef sei sek ser ses seu sfa sfe sff sfi sfk sfr sfs sfu sia sie sif sii sik sir sis siu sk- ska ske skf ski skk skr sks sku sr- sra sre srf sri srk srr srs ss- ssa sse ssf ssi ssk ssr sss ssu sua sue suf sui suk sur sus suu ua- uaa uae uaf uai uak uar uas uau uea uee uef uei uer ues ufa ufe uff ufi ufr ufs ufu uia uie uif uii uir uis uiu uka uke ukf uki ukk ukr uku ur- ura ure urf uri urk urr urs uru usa use usf usi usk usr uss usu uua uue uur uus uuu