hhhh hhhs hhus hrhs hshs hsts hsur hths httr huhs huhu hurr hurs hurt huru hush huss hust huth huts hutt hutu huus rhhs rhus rrhs rrrr rshs rsts rstu rths rtss rtts ruhh ruhr ruhs rurs ruru rush russ rust rusu ruth ruts rutt rutu shhh shhs shrs shts shur shus shut shuu srhs srtr sshs ssrs sssh ssss ssth ssts sths strs stru stss sttr stur stus stut suhr sur- surr surs surt suru sus- suss sust susu sutu suus thru thsr thss thtr thts thur thus trhs trst trtr trus trut truu tshs tssr tsst tsts ttss tttt tuhs tuht tuhu turr turs turt turu tush tuss tust tuts tutt tutu uhrs uhss uhuh urrh urss ursu urth urts urur urus urut ushr ushs ushu ussr usss usst ussu usts usus uttu uuuu