a-a a-i aaa aai aam aao aar aas ai- aia aii aim aio air ais ama ami amm amo amr ams aoa aoi aom aoo aor aos ar- ara ari arm aro arr ars as- asa asi asm aso asr ass ia- iaa iai iam iao iar ias iia iii iim iio iir iis im- ima imi imm imo ims io- ioa ioi iom ioo ior ios ir- ira iri irm iro irr irs is- isa isi ism iso isr iss m-o m-r maa mai mam mao mar mas mi- mia mii mim mio mir mis mma mmi mmm mmo mmr mms moa moi mom moo mor mos mra mri mrm mro mrr mrs msa msi msm mso msr mss o-i oaa oai oam oao oar oas oia oii oim oio oir ois om- oma omi omm omo omr oms oo- ooa ooi oom ooo oor oos or- ora ori orm oro orr ors os- osa osi osm oso osr oss ra- raa rai ram rao rar ras ria rii rim rio rir ris rma rmi rmm rmo rmr rms roa roi rom roo ror ros rra rri rrm rrr rrs rsa rsi rsm rso rsr rss saa sai sam sao sar sas sia sii sim sio sir sis sma smi smm smo smr sms soa soi som soo sor sos sr- sra sri srm sro srr srs ss- ssa ssi ssm sso ssr sss