b-u bbb bbg bbi bbl bbs bbu bgb bgg bgi bgl bgs bgu bi- bib big bii bil bis biu blb blg bli bll bls blu bsb bsg bsi bsl bss bsu bub bug bui bul bus buu gbg gbi gbl gbs gbu ggb ggg ggi ggs ggu gib gig gii gil gis giu glb glg gli gll gls glu gsb gsg gsi gsl gss gsu gu- gub gug gui gul gus guu ibb ibg ibi ibl ibs ibu igb igg igi igl igs igu iib iii iil iis iiu il- ilb ilg ili ill ils ilu is- isb isg isi isl iss isu iu- iub iug iui ius lbb lbg lbi lbl lbs lbu lgb lgg lgi lgl lgs lgu lib lig lii lil lis liu llb llg lli lll lls llu lsb lsg lsi lsl lss lsu lub lug lui lul lus luu sbb sbg sbi sbl sbs sbu sgb sgg sgi sgl sgs sgu sib sig sii sil sis siu slb slg sli sll sls slu ss- ssb ssg ssi ssl sss ssu sub sug sui sul sus suu ubb ubg ubi ubl ubs ubu ugb ugg ugi ugl ugs ugu uib uig uii uil uis uiu ulb ulg uli ull uls ulu usb usg usi usl uss usu uug uus uuu