-up b-p b-u bbb bbg bbi bbl bbp bbu bgb bgg bgi bgl bgp bgu bi- bib big bii bil bip biu blb blg bli bll blp blu bpb bpg bpi bpl bpp bpu bub bug bui bul bup buu g-p gbg gbi gbl gbp gbu ggb ggg ggi ggp ggu gib gig gii gil gip giu glb glg gli gll glp glu gpb gpg gpi gpl gpp gpu gu- gub gug gui gul gup guu ibb ibg ibi ibl ibp ibu igb igg igi igl igp igu iib iii iil iip iiu il- ilb ilg ili ill ilp ilu ipb ipg ipi ipl ipp ipu iu- iub iug iui iup l-p lbb lbg lbi lbl lbp lbu lgb lgg lgi lgl lgp lgu lib lig lii lil lip liu llb llg lli lll llp llu lpb lpg lpi lpl lpp lpu lub lug lui lul lup luu p-p pbb pbg pbi pbl pbp pbu pgb pgg pgi pgl pgp pib pig pii pil pip piu plb plg pli pll plp plu ppb ppg ppi ppl ppp ppu pub pug pui pul pup puu ubb ubg ubi ubl ubp ubu ugb ugg ugi ugl ugp ugu uib uig uii uil uip uiu ulb ulg uli ull ulp ulu up- upb upg upi upp upu uug uuu