-er a-a aaa aae aan aar aas aau aea aee aen aer aes aeu an- ana ane ann anr ans anu ar- ara are arn arr ars aru as- asa ase asn asr ass asu au- aua aue aun aur aus eaa eae ean ear eas eau eea eee een eer ees en- ena ene enn enr ens enu era ere ern err ers eru es- esa ese esn esr ess esu eu- eua eue eun eur eus naa nae nan nar nas nau ne- nea nee nen ner nes neu nna nne nnn nns nnu nra nre nrn nrr nrs nru nsa nse nsn nsr nss nsu nua nue nun nur nus nuu ra- raa rae ran rar ras rau re- rea ree ren rer res reu rna rnn rnr rns rnu rra rrn rrr rrs rru rsa rse rsn rsr rss rsu rua rue run rur rus ruu saa sae san sar sas sau se- sea see sen ser ses seu sna sne snn snr sns snu sr- sra sre srn srr srs ss- ssa sse ssn ssr sss ssu sua sue sun sur sus suu ua- uaa uae uan uar uas uau uea uee uen uer ues un- una une unn unr uns unu ur- ura ure urn urr urs uru usa use usn usr uss usu uua uue uun uur uus uuu