b-u bbb bbm bbo bbr bbs bbt bbu bmb bmm bmo bmr bms bmt bmu bmz bob bom boo bor bos bot bou boz brb brm bro brr brs brt bru brz bsb bsm bso bsr bss bst bsu btb btm bto btr bts btt btu btz bub bum buo bur bus but buu buz bzo bzr bzs bzu bzz m-o m-r mbb mbm mbo mbr mbs mbt mbu mmb mmm mmo mmr mms mmt mmu mmz mob mom moo mor mos mot mou moz mrb mrm mro mrr mrs mrt mru mrz msb msm mso msr mss mst msu mtb mtm mto mtr mts mtt mtu mub mum mur mus mut muu mzb mzm mzt ob- obb obm obo obr obs obt obu om- omb omm omo omr oms omt omu omz oo- oob oom ooo oor oos oot or- orb orm oro orr ors ort oru orz os- osb osm oso osr oss ost osu ot- otb otm oto otr ots ott otu otz ou- oum ouo our ous out ozm ozo ozs ozt ozu ozz rbb rbm rbo rbr rbs rbt rbu rmb rmm rmo rmr rms rmt rob rom roo ror ros rot rou roz rrb rrm rrr rrs rrt rru rsb rsm rso rsr rss rst rsu rtb rtm rto rtr rts rtt rtu rtz rub rum ruo rur rus rut ruu ruz rzb rzm rzo sbb sbm sbo sbr sbs sbt sbu smb smm smo smr sms smt smu smz sob som soo sor sos sot sou soz sr- srb srm sro srr srs srt ss- ssb ssm sso ssr sss sst ssu ssz stb stm sto str sts stt stu stz sub sum suo sur sus sut suu suz szr szu tbb tbm tbo tbr tbs tbt tbu tbz tmb tmm tmo tmr tms tmt tmu tmz to- tob tom too tor tos tot tou toz trb trm tro trr trs trt tru trz tsb tsm tso tsr tss tst tsu ttb ttm tto ttr tts ttt ttu tub tum tuo tur tus tut tuu tuz tzs tzu ubb ubo ubr ubs ubt ubu um- umb umm umo umr ums umt umu uob uom uoo uor uos uot ur- urb urm uro urr urs urt uru urz usb usm uso usr uss ust usu usz utb utm uto utr uts utt utu utz uum uur uus uut uuu uzb uzo uzu zbb zbm zbr zbs zbt zmb zmm zms zmt zo- zob zom zoo zor zos zot zou zro zrs zsm zst zsu zsz ztm ztr zub zum zur zus zut zuz zzr zzs zzt zzz

-ous bbbb bbbs bmts bmus bobb bobo bobs bobu bomb boms bomt bomu boob boom boor boos boot booz bor- borm boro borr bors bort boru borz bosm boso boss bost bosu botb boto bots bott boum bour bous bout bozo brob brom broo bror bros brot brou broz brrm brrr brrs brsb brsr brst brum brus brut bruz bsms bsmt bsos bsrm bssm bsts btob btor btrt btss bttb btus bubb bubo bubs bubu bum- bumb bums bur- burb burm buro burr burs burt buru burz buss bust busu but- buto buts butt butz buus buuz buzz bzou bzzt bzzz mbbs mbms mbou mbrs mbus mmmm mmms mmor mmst mmsu mmts mmus mobb mobo mobs momo moms momu moob moor moos moot morb moro mors mort moru moso moss most mosu motb motm moto mots mott motu motz mour mous mout mozo mozu mrbb mrbm mrbs mroz mrtm mrts mrtt msmb msmm msms msmu msor msrb msrt mssm mssr msst mstr msts msus mtbo mtbs mtom mtor mtrr mtss mtst mttr mtts mubo mubs mumm mumo mums mumu muos muro murr murs murt muru muso muss must musu muto muts mutt mutu muut muzo muzz obbo obor obos obot obro obsr obss obst obts obus ombo ombu omo- omoo omor omro omuo omus ooms oooo ooos oort oost ootb oots oous orbb orbo orbs orbu ormo oro- orom oror oros orot oroz orro orrs orso orsu orto orts orub orum orus orzo orzu osm- osmo osoo osor osos osro ossb osso ossu ostr osts osum otbs oto- otoo otor otos otro otrs otso otsu otto otts ottu otur otus oubs our- ouro ours ourt oust out- outb outo outs ouu- ouzo rbbb rbbr rbbs rbms rbss rbst rmbs rmst rmtu rob- robb robo robs robt robu romb romm romo roms roob room roor roos root rooz roro rort roru roso ross rost roto rotr rots rott roub roum rous rout rouz rozz rrrr rrum rsos rsts rstu rsum rtms rtss rtts rubb rubs rubu rumb rumm rumo rums rumt ruro rurs ruru ruso russ rust rusu ruto ruts rutt rutu s-os sbbs sbor sbot sbst sbus smos smot smrt smrz smss smtu smur smus smut smzb sobo sobr sobs sobt sobu somb somm somo soom soor soos soot sorb sorm soro sorr sors sort soru soso soss sost sotm soto sots sotu soum sour sous sout soz- sros srtr srub srzu ssbr ssot ssrm ssrs sssb sssm ssss sstb ssts stbs stms stmt stob stom stoo stor stos stot stou stro strs stru stsm stss sttr stub stum stur stus stut sub- subb subm subo subs subz sum- sumo sums sumu suor suos sur- suro surr surs surt suru sus- suso suss sust susu susz suto sutu suum suus suzo suzu suzz szob szot szss szur t-mo tbbs tbrb tbst tmbr tmos tmou tmro tmtt tobo tobs tobt tobu tomb tomm tomo toms tomt toom toor toos toot torm toro torr tors tort toru tosb toso toss tost tosu totm toto totr tots tott toum tour tous tout tozo trmb trms trmu trom troo tros trot trou trst trtr trub trus trut truu tsob tsom tsos tsou tssm tssr tsst tstm tsts tsum ttbb ttms ttss tttt tubb tubo tubr tubs tubu tumb tums tumu tuor tuos turb turm turo turr turs turt turu tusm tuss tust tuto tuts tutt tutu tuum tuuo tuzu tuzz tzum