-ous bbbb bbbs bblb bbls blls blob blom bloo blou blss blub blum blus bmus bobb bobo bobs bobu boll bolm bolo bols bolu bomb boms bomu boob bool boom boos bosm boso boss bosu boul boum bous bsms bsos bssm bubb bubo bubs bubu bulb bull buls bulu bum- bumb bums buol buss busu buus lbms lbos llbs llll llms lloo lmbo lmms lob- lobb lobo lobs loll lolo lols lomb lomm lomo loms lomu loob lool loom loos loso loss loul loum lous louu lsbu lsso lubs lull lulu lumb lumo lums luso luss mbbs mbms mbou mbsl mbus mlss mmmm mmms mmsu mmus mobb mobo mobs moll molo mols momo moms momu moob mool moos moso moss mosu moul mous msmb msml msmm msms msmu msol mssm msus mubo mubs mull mulm mulo mulu mumm mumo mums mumu muos musl muso muss musu obbo obls oblu obol obos obss obus olbo ollo olmo olms olom olos ombo ombu omo- omoo omul omuo omus oolo ooms oooo ooos oous oslo osm- osmo osoo osos ossb osso ossu osul osum oubs ouls oulu ouu- s-os sbbs sbml sbus sllm slmm slob sloo slos slsu slub slum smls smol smos smss smus sobo sobs sobu soll solo sols somb soml somm somo sool soom soos soso soss soul soum sous ssml sssb sssm ssss sub- subb subl subm subo subs sul- sull sulm sulo sulu sum- sumo sums sumu suos sus- suso suss susu suum suus ubbo ublo ubls ubos ullo ulmo ulmu ulo- ulos ulul ulum ulus umb- umbo ummo umms umol umsu umus uoml uomo usbl usbs uslu usmm usms usos ussb usss ussu usul usus uulu uuuu