bbbb bbbs bbhs bblb bbls bhhs bhur bhuu blhs blls blss blub blur blus brhs brls brrr brrs brsb brsr bruh brus bshs bubb bubs bubu buhl buhr buhs bulb bull buls bulu bur- burb burh burl burr burs buru bush buss busu buus hbbs hbhs hbrs hbss hhhh hhhs hhus hlhs hlss hlul hrbl hrhs hshs hsls hsur hubb hubl hubs huhs huhu hull huls hulu hurl hurr hurs huru hush huss huub huus lbhs lblr lbrs lhbs lhhh lhhs lhss llbs llhs llll lrhs lrrr ls-r lsbu lshs lssr lubs luhu lull lulu lurs lush luss rbbb rbbr rbbs rbhs rbsl rbss rhhs rhls rhus rlls rlsh rrhs rrrr rshs rssl rubb rubs rubu ruhh ruhl ruhr ruhs rull rurs ruru rush russ rusu sbbs sbhs sbus shbs shhh shhs shl- shls shrs shub shul shur shus shuu slhs slrs slsu slub slur srhs srub ssbr sshl sshs ssrl ssrs sssb sssh ssss sub- subb subh subl subs suhb suhl suhr sul- sulh sull sulu sur- surr surs suru sus- suss susu suus ubls uhrs uhss uhuh ullr ulul ulus urbs urls urrh urss ursu urur urus usbl usbr usbs ushr ushs ushu uslu ussb ussr usss ussu usul usus uulu uuuu