a-a a-c aaa aac aaf aam aao aar aau ac- aca acc acf acm aco acr acu af- afa afc aff afm afo afr afu ama amc amf amm amo amr amu aoa aoc aof aom aoo aor aou ar- ara arc arf arm aro arr aru au- aua auc auf aum auo aur c-- caa cac caf cam cao car cau cca ccc ccf ccm cco ccr ccu cfa cfc cff cfm cfo cfr cfu cma cmc cmf cmm cmo cmr cmu co- coa coc cof com coo cor cou cra crc crf crm cro crr cru cua cuc cuf cum cuo cur cuu faa fac faf fam fao far fau fca fcc fcf fcm fco fcr fcu ffa ffc fff ffm ffo ffr ffu fma fmc fmf fmm fmo fmr fmu foa foc fof fom foo for fou fra frc frf frm fro frr fru fua fuf fum fuo fur fuu m-f m-o m-r maa mac maf mam mao mar mau mc- mca mcc mcf mcm mco mcr mcu mfa mfc mff mfm mfo mfr mfu mma mmc mmf mmm mmo mmr mmu moa moc mof mom moo mor mou mra mrc mrf mrm mro mrr mru mua muc muf mum mur muu oaa oac oaf oam oao oar oau oc- oca occ ocf ocm oco ocr ocu of- ofa ofc off ofm ofo ofr ofu om- oma omc omf omm omo omr omu oo- ooa ooc oof oom ooo oor or- ora orc orf orm oro orr oru ou- oua ouc ouf oum ouo our ra- raa rac raf ram rao rar rau rca rcc rcf rcm rco rcr rcu rfa rfc rff rfm rfo rfr rfu rma rmc rmf rmm rmo rmr roa roc rof rom roo ror rou rra rrc rrf rrm rrr rru rua ruc ruf rum ruo rur ruu ua- uaa uac uaf uam uao uar uau uca ucc ucf ucm uco ucr ucu ufa ufc uff ufm ufo ufr ufu um- uma umc umf umm umo umr umu uoa uoc uom uoo uor ur- ura urc urf urm uro urr uru uua uuc uum uur uuu