b-u bbb bbl bbs bbt bbu blb bll bls blt blu bsb bsl bss bst bsu btb btl bts btt btu bub bul bus but buu lbb lbl lbs lbt lbu llb lll lls llt llu lsb lsl lss lst lsu ltb ltl lts ltt ltu lub lul lus lut luu sbb sbl sbs sbt sbu slb sll sls slt slu ss- ssb ssl sss sst ssu stb stl sts stt stu sub sul sus sut suu tbb tbl tbs tbt tbu tll tls tlt tlu tsb tsl tss tst tsu ttb ttl tts ttt ttu tub tul tus tut tuu ubb ubl ubs ubt ubu ulb ull uls ult ulu usb usl uss ust usu utb utl uts utt utu uus uut uuu

bbbb bbbs bblb bbls blbt blls blss blst blts blub blus blut bsts btss bttb btus bubb bubs bubu bulb bull buls bult bulu buss bust busu but- buts butt buus llbs llll lsbu lsts ltbl lubs lull lulu luss lust luts sbbs sbst sbus slst slsu slts slub slut sslt sssb ssss sstb sstl ssts stbs stlt stss stub stul stus stut sub- subb subl subs sul- sull sult sulu sus- suss sust susu sutu suus tbbs tbst tsst tsts ttbb ttss tttt ttul tubb tubs tubu tull tulu tuss tust tutl tuts tutt tutu ubls ults ultt ulul ulus usbl usbs uslu ussb usss usst ussu ustb usts usul usus utsl uttu uulu uuuu

bbuss blubs btstu bulb- bulbs bull- bulls bulul bulus bulut bussu busts busut busuu butts butut lulls lulul lulus lusts lusus lutsu s-bus slsts slubs sluss sluts ssbul sssss stubs stull stult stuss subbu subss subst sulls sulus sulut susus suttu tbtbt tbutt tstlt ttttt ttusb tubbs tubul tulls tulus tutus ululu usutu utsul uuuuu

bbbbbb blublu bs-tbs bububu bulbul bulbus bulusu bututs ltsulu lullus stubbs stulls susulu tubul- tullus tuttul tuttut ubussu ustult

bbbbbbb bulbuls bustuus sssssss subsult susulus tubulus tul-tul tut-tut tuttuts tutulus ustults

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lulustutus

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