a-a a-c aaa aac aaf aam aao aar aay ac- aca acc acf acm aco acr acy af- afa afc aff afm afo afr afy ama amc amf amm amo amr amy aoa aoc aof aom aoo aor ar- ara arc arf arm aro arr ary ay- aya ayc ayf ayo ayr c-- caa cac caf cam cao car cay cca ccc ccf ccm cco ccr cfa cfc cff cfm cfo cfr cma cmc cmf cmm cmo cmr cmy co- coa coc cof com coo cor coy cra crc crf crm cro crr cry cya cyc cyf cym cyo cyr faa fac faf fam fao far fay fca fcc fcf fcm fco fcr fcy ffa ffc fff ffm ffo ffr ffy fma fmc fmf fmm fmo fmr foa foc fof fom foo for foy fra frc frf frm fro frr fry fy- fya fyc fyo m-f m-o m-r maa mac maf mam mao mar may mc- mca mcc mcf mcm mco mcr mfa mfc mff mfm mfo mfr mfy mma mmc mmf mmm mmo mmr moa moc mof mom moo mor moy mra mrc mrf mrm mro mrr mry my- mya myc myf mym myo myr oaa oac oaf oam oao oar oc- oca occ ocf ocm oco ocr of- ofa ofc off ofm ofo ofr om- oma omc omf omm omo omr omy oo- ooa ooc oof oom ooo oor or- ora orc orf orm oro orr ory oya oyo ra- raa rac raf ram rao rar ray rca rcc rcf rcm rco rcr rfa rfc rff rfm rfo rfr rma rmc rmf rmm rmo rmr roa roc rof rom roo ror roy rra rrc rrf rrm rrr ry- rya ryc ryf rym ryo ryr ryy yaa yac yaf yam yao yar yay yca ycc ycf yco ycy yfa yfc yff yfm yfr yma ymc ymm ymo yoc yof yom yoo yor yoy yra yrc yrf yro yyc yyf yyy