a-a aaa aam aan aao aar aas ama amm amn amo amr ams an- ana anm ann ano anr ans aoa aom aon aoo aor aos ar- ara arm arn aro arr ars as- asa asm asn aso asr ass m-o m-r maa mam man mao mar mas mma mmm mmn mmo mmr mms mna mnm mnn mno mnr mns moa mom mon moo mor mos mra mrm mrn mro mrr mrs msa msm msn mso msr mss naa nam nan nao nar nas nma nmm nmn nmo nmr nms nna nnm nnn nno nns no- noa nom non noo nor nos nra nrm nrn nro nrr nrs nsa nsm nsn nso nsr nss oaa oam oan oao oar oas om- oma omm omn omo omr oms on- ona onn ono onr ons oo- ooa oom oon ooo oor oos or- ora orm orn oro orr ors os- osa osm osn oso osr oss ra- raa ram ran rao rar ras rma rmm rmn rmo rmr rms rna rnm rnn rno rnr rns roa rom ron roo ror ros rra rrm rrn rrr rrs rsa rsm rsn rso rsr rss saa sam san sao sar sas sma smm smn smo smr sms sna snm snn sno snr sns soa som son soo sor sos sr- sra srm srn sro srr srs ss- ssa ssm ssn sso ssr sss