a-a a-t aaa aaf aam aan aao aar aas aat af- afa aff afm afn afo afr afs aft ama amf amm amn amo amr ams amt an- ana anf anm ann ano anr ans ant aoa aof aom aon aoo aor aos aot ar- ara arf arm arn aro arr ars art as- asa asf asm asn aso asr ass ast at- ata atf atm atn ato atr ats att faa faf fam fan fao far fas fat ffa fff ffm ffn ffo ffr ffs fft fma fmf fmm fmn fmo fmr fms fmt fna fnf fnm fnn fnr fns fnt foa fof fom fon foo for fos fot fra frf frm frn fro frr frs frt fsa fsf fsm fsn fso fsr fss fst fta ftf ftm ftn fto ftr fts ftt m-f m-o m-r maa maf mam man mao mar mas mat mfa mff mfm mfn mfo mfr mfs mft mma mmf mmm mmn mmo mmr mms mmt mna mnf mnm mnn mno mnr mns mnt moa mof mom mon moo mor mos mot mra mrf mrm mrn mro mrr mrs mrt msa msf msm msn mso msr mss mst mta mtf mtm mtn mto mtr mts mtt naa naf nam nan nao nar nas nat nfa nff nfn nfo nfr nfs nft nma nmm nmn nmo nmr nms nmt nna nnf nnm nnn nno nns nnt no- noa nof nom non noo nor nos not nra nrf nrm nrn nro nrr nrs nrt nsa nsf nsm nsn nso nsr nss nst nta ntf ntm ntn nto ntr nts ntt oaa oaf oam oan oao oar oas oat of- ofa off ofm ofn ofo ofr ofs oft om- oma omf omm omn omo omr oms omt on- ona onf onn ono onr ons ont oo- ooa oof oom oon ooo oor oos oot or- ora orf orm orn oro orr ors ort os- osa osf osm osn oso osr oss ost ot- ota otf otm otn oto otr ots ott ra- raa raf ram ran rao rar ras rat rfa rff rfm rfn rfo rfr rfs rft rma rmf rmm rmn rmo rmr rms rmt rna rnm rnn rno rnr rns rnt roa rof rom ron roo ror ros rot rra rrf rrm rrn rrr rrs rrt rsa rsf rsm rsn rso rsr rss rst rta rtf rtm rtn rto rtr rts rtt saa saf sam san sao sar sas sat sfa sff sfm sfn sfo sfr sfs sft sma smf smm smn smo smr sms smt sna snf snm snn sno snr sns snt soa sof som son soo sor sos sot sr- sra srf srm srn sro srr srs srt ss- ssa ssf ssm ssn sso ssr sss sst sta stf stm stn sto str sts stt taa taf tam tan tao tar tas tat tfa tff tfm tfn tfo tfr tfs tft tma tmf tmm tmn tmo tmr tms tmt tna tnf tnm tnn tno tnr tns tnt to- toa tof tom ton too tor tos tot tra trf trm trn tro trr trs trt tsa tsf tsm tsn tso tsr tss tst tta ttf ttm ttn tto ttr tts ttt