fff ffg ffl ffm ffs ffu fgf fgg fgl fgm fgs flf flg fll flm fls flu fmf fmg fml fmm fms fmu fsf fsg fsl fsm fss fsu fuf fug ful fum fus fuu gff gfl gfm gfs ggg ggm ggs ggu glf glg gll glm gls glu gmf gmg gml gmm gms gsf gsg gsl gsm gss gsu gu- guf gug gul gum gus guu lff lfg lfl lfm lfs lfu lgf lgg lgl lgm lgs lgu llf llg lll llm lls llu lmf lmg lml lmm lms lmu lsf lsg lsl lsm lss lsu luf lug lul lum lus luu m-f mff mfg mfl mfm mfs mfu mgf mgl mgm mgs mgu mlf mlg mll mlm mls mlu mmf mmg mml mmm mms mmu msf msg msl msm mss msu muf mug mul mum mus muu sff sfg sfl sfm sfs sfu sgf sgg sgl sgm sgs sgu slf slg sll slm sls slu smf smg sml smm sms smu ss- ssf ssg ssl ssm sss ssu suf sug sul sum sus suu uff ufg ufl ufm ufs ufu ugf ugg ugl ugm ugs ugu ulf ulg ull ulm uls ulu um- umf umg uml umm ums umu usf usg usl usm uss usu uug uum uus uuu