-er eee eek eeo eer ees ehe ehh eho ehr ehs ehu eke ekh eko ekr eks eku eo- eoe eoh eok eoo eor eos eou ere erh erk ero err ers eru es- ese esh esk eso esr ess esu eu- eue eur eus he- hee heh hek heo her hes heu hhe hhh hhk hho hhr hhs hhu hkh hkk hko hkr hks hku hoe hoh hok hoo hor hos hou hr- hre hrh hrk hro hrr hrs hru hse hsh hsk hsr hss hsu hue huh huk huo hur hus huu ke- kee keh kek keo ker kes khe khh khk kho khr khs khu kke kkh kkk kkr kks kku koe koh kok koo kor kos kou krk kro krr krs kru kse ksh ksk kso ksr kss ksu kue kuh kuk kur kus kuu oee oeh oeo oer oes ohe ohh oho ohr ohs ohu oke okk oko okr oks oku oo- ooh ook ooo oor oos or- ore orh ork oro orr ors oru os- ose osh osk oso osr oss osu ou- oue ouh ouk ouo our ous re- ree reh rek reo rer res reu rh- rhe rhh rho rhr rhs rhu rke rkk rko rks rku roe roh rok roo ror ros rou rrh rrk rrr rrs rru rse rsh rsk rso rsr rss rsu rue ruh ruk ruo rur rus ruu se- see seh sek seo ser ses seu sh- she shh shk sho shr shs shu sk- ske skh skk sko skr sks sku soe soh sok soo sor sos sou sr- sre srh srk sro srr srs ss- sse ssh ssk sso ssr sss ssu sue suh suk suo sur sus suu uee ueh uer ues uhe uhh uho uhr uhs uhu uke ukk ukr uku uoe uok uoo uor uos ur- ure urk uro urr urs uru use ush usk uso usr uss usu uue uur uus uuu