a-a a-c aaa aac aaf aam aas aau ac- aca acc acf acm acs acu af- afa afc aff afm afs afu ama amc amf amm ams amu as- asa asc asf asm ass asu au- aua auc auf aum aus c-- caa cac caf cam cas cau cca ccc ccf ccm ccs ccu cfa cfc cff cfm cfs cfu cma cmc cmf cmm cms cmu csa csc csf csm css csu cua cuc cuf cum cus cuu faa fac faf fam fas fau fca fcc fcf fcm fcs fcu ffa ffc fff ffm ffs ffu fma fmc fmf fmm fms fmu fsa fsc fsf fsm fss fsu fua fuf fum fus fuu m-f maa mac maf mam mas mau mc- mca mcc mcf mcm mcs mcu mfa mfc mff mfm mfs mfu mma mmc mmf mmm mms mmu msa msc msf msm mss msu mua muc muf mum mus muu saa sac saf sam sas sau sca scc scf scm scs scu sfa sfc sff sfm sfs sfu sma smc smf smm sms smu ss- ssa ssc ssf ssm sss ssu sua suc suf sum sus suu ua- uaa uac uaf uam uas uau uca ucc ucf ucm ucs ucu ufa ufc uff ufm ufs ufu um- uma umc umf umm ums umu usa usc usf usm uss usu uua uuc uum uus uuu