-up b-p b-u bbb bbg bbl bbp bbs bbt bbu bgb bgg bgl bgp bgs bgt bgu blb blg bll blp bls blt blu bpb bpg bpl bpp bps bpt bpu bsb bsg bsl bsp bss bst bsu btb btg btl btp bts btt btu bub bug bul bup bus but buu g-p gbg gbl gbp gbs gbt gbu ggb ggg ggp ggs ggt ggu glb glg gll glp gls glt glu gpb gpg gpl gpp gps gpt gpu gsb gsg gsl gsp gss gst gsu gtb gtg gtl gtp gts gtt gtu gu- gub gug gul gup gus gut guu l-p lbb lbg lbl lbp lbs lbt lbu lgb lgg lgl lgp lgs lgt lgu llb llg lll llp lls llt llu lpb lpg lpl lpp lps lpt lpu lsb lsg lsl lsp lss lst lsu ltb ltg ltl ltp lts ltt ltu lub lug lul lup lus lut luu p-p pbb pbg pbl pbp pbs pbt pbu pgb pgg pgl pgp pgs pgt plb plg pll plp pls plt plu ppb ppg ppl ppp pps ppt ppu ps- psb psg psl psp pss pst psu pt- ptb ptg ptl ptp pts ptt ptu pub pug pul pup pus put puu sbb sbg sbl sbp sbs sbt sbu sgb sgg sgl sgp sgs sgt sgu slb slg sll slp sls slt slu spb spg spl spp sps spt spu ss- ssb ssg ssl ssp sss sst ssu stb stg stl stp sts stt stu sub sug sul sup sus sut suu tbb tbg tbl tbp tbs tbt tbu tgb tgg tgl tgp tgs tgt tgu tlg tll tlp tls tlt tlu tpb tpg tpl tpp tps tpt tpu tsb tsg tsl tsp tss tst tsu ttb ttg ttl ttp tts ttt ttu tub tug tul tup tus tut tuu ubb ubg ubl ubp ubs ubt ubu ugb ugg ugl ugp ugs ugt ugu ulb ulg ull ulp uls ult ulu up- upb upg upp ups upt upu usb usg usl usp uss ust usu utb utl utp uts utt utu uug uus uut uuu