b-u bbb bbe bbg bbi bbl bbm bbu bbx be- beb bee beg bei bel bem beu bex bgb bge bgg bgi bgl bgm bgu bgx bi- bib bie big bii bil bim biu bix blb ble blg bli bll blm blu blx bmb bme bmg bmi bml bmm bmu bmx bub bue bug bui bul bum buu bux bxb bxi bxl bxm bxx ebb ebe ebg ebi ebl ebm ebu ebx eeb eee eeg eel eem eex egb ege egg egi egl egm egu egx eib eie eig eii eil eim eiu eix elb ele elg eli ell elm elu elx em- emb eme emg emi eml emm emu emx eu- eub eue eug eui eul eux ex- exe exi exl exu exx gbe gbg gbi gbl gbm gbu gbx ge- geb gee geg gei gel gem geu gex ggb ggg ggi ggm ggu gib gie gig gii gil gim giu glb gle glg gli gll glm glu glx gmb gme gmg gmi gml gmm gmx gu- gub gue gug gui gul gum guu gxl ibb ibe ibg ibi ibl ibm ibu ibx ie- iee ieg iei iel iem iex igb ige igg igi igl igm igu iib iie iii iil iim iiu iix il- ilb ile ilg ili ill ilm ilu ilx im- imb ime img imi iml imm imu imx iu- iub iue iug iui ium ixe ixi ixl lbb lbe lbg lbi lbl lbm lbu lbx leb lee leg lei lel lem leu lex lgb lge lgg lgi lgl lgm lgu lib lie lig lii lil lim liu lix llb lle llg lli lll llm llu lmb lme lmg lmi lml lmm lmu lub lue lug lui lul lum luu lux lxi lxx mbb mbe mbg mbi mbl mbm mbu mbx meb mee meg mei mel mem meu mex mgb mge mgi mgl mgm mgu mgx mi- mib mie mig mii mil mim miu mix mlb mle mlg mli mll mlm mlu mlx mmb mme mmg mmi mml mmm mmu mmx mub mue mug mui mul mum muu mux mxi mxl mxu ubb ube ubg ubi ubl ubu ubx ueb uee ueg uei uel uem ugb uge ugg ugi ugl ugm ugu ugx uib uie uig uii uil uim uiu ulb ule ulg uli ull ulm ulu um- umb ume umg umi uml umm umu uue uug uum uuu uxb uxu xbe xbl xbx xee xeg xel xem xeu xex xge xgi xgl xie xii xiu xix xlb xlg xli xlm xmg xmi xml xmm xmu xmx xue xui xul xxi xxl xxx