gggg ggss grrr grrs grss grug grur grus grut gstr gsur gugg gugu gurg gurr gurs gurt guru guss gust guts gutt gutu guus rgtr rgts rrrr rsts rstu rtgs rtss rtts rugg rugs rurs ruru russ rust rusu ruts rutt rutu sggg sggs sgss sgts srtr ssgs ssgt ssrg ssrs ssss ssts stgr strs stru stss sttr stug stur stus stut sug- sugg sur- surg surr surs surt suru sus- suss sust susu sutu suus tgts trst trtr trug trus trut truu tsgt tssg tssr tsst tsts ttss tttt tugg tugs tugu turg turr turs turt turu tuss tust tuts tutt tutu uggs uggt ugur uguu urgu urss ursu urts urur urus urut ussr usss usst ussu usts usus uttu utug uuuu