a-a a-i aaa aai aan aao aar aas ai- aia aii ain aio air ais an- ana ani ann ano anr ans aoa aoi aon aoo aor aos ar- ara ari arn aro arr ars as- asa asi asn aso asr ass ia- iaa iai ian iao iar ias iia iii iin iio iir iis in- ina ini inn ino inr ins io- ioa ioi ion ioo ior ios ir- ira iri irn iro irr irs is- isa isi isn iso isr iss n-i naa nai nan nao nar nas nia nii nin nio nir nis nna nni nnn nno nns no- noa noi non noo nor nos nra nri nrn nro nrr nrs nsa nsi nsn nso nsr nss o-i oaa oai oan oao oar oas oia oii oin oio oir ois on- ona oni onn ono onr ons oo- ooa ooi oon ooo oor oos or- ora ori orn oro orr ors os- osa osi osn oso osr oss ra- raa rai ran rao rar ras ria rii rin rio rir ris rna rni rnn rno rnr rns roa roi ron roo ror ros rra rri rrn rrr rrs rsa rsi rsn rso rsr rss saa sai san sao sar sas sia sii sin sio sir sis sna sni snn sno snr sns soa soi son soo sor sos sr- sra sri srn sro srr srs ss- ssa ssi ssn sso ssr sss