a-a aaa aah aan aao aar aas aha ahh ahn aho ahr ahs an- ana anh ann ano anr ans aoa aoh aon aoo aor aos ar- ara arh arn aro arr ars as- asa ash asn aso asr ass haa hah han hao har has hha hhh hhn hho hhr hhs hna hnh hnn hno hns hoa hoh hon hoo hor hos hr- hra hrh hrn hro hrr hrs hsa hsh hsn hsr hss naa nah nan nao nar nas nha nhh nhn nhr nhs nna nnh nnn nno nns no- noa noh non noo nor nos nra nrn nro nrr nrs nsa nsh nsn nso nsr nss oaa oah oan oao oar oas oha ohh ohn oho ohr ohs on- ona onh onn ono onr ons oo- ooa ooh oon ooo oor oos or- ora orh orn oro orr ors os- osa osh osn oso osr oss ra- raa rah ran rao rar ras rh- rha rhh rhn rho rhr rhs rna rnh rnn rno rnr rns roa roh ron roo ror ros rra rrh rrn rrr rrs rsa rsh rsn rso rsr rss saa sah san sao sar sas sh- sha shh shn sho shr shs sna snn sno snr sns soa soh son soo sor sos sr- sra srh srn sro srr srs ss- ssa ssh ssn sso ssr sss