-ous bbbb bbbs bblb bbls blls blob bloo blou blss blub blus bobb bobo bobs bobu boll bolo bols bolu boob bool boos boso boss bosu boul bous bovo bsos bubb bubo bubs bubu bulb bull buls bulu buol buss busu buus lbos llbs llll lloo lo-v lob- lobb lobo lobs loll lolo lols loob lool loos loso loss loul lous louu lovo lsbu lsso lubs lull lulu luso luss luvs lvov lvsv obbo obls oblu obol obos obss obus obvs olbo ollo olos olov oolo oooo ooos oous oslo osoo osos osov ossb osso ossu osul oubs ouls oulu ouu- ovo- ovol ovoo s-os sbbs sbus slob sloo slos slsu slub sobo sobs sobu soll solo sols solv sool soos soso soss sosv soul sous sovo sovs sovu sssb ssss sub- subb subl subo subs sul- sull sulo sulu suos sus- suso suss susu suus suvs ubbo ublo ubls ubos ullo ulo- ulos ulul ulus uovo usbl usbs uslu usos usov ussb usss ussu usul usus uulu uuuu uv-b uvvu vlos voll volo vols vool voso voss vosu voul vous vssl vull vvob vvsb vvvv