ffff ffss fftf fgts fltg flts fluf flus fsgs fssf ft-l fuff fufu fugs fugu full fuls fulu fuss fust fusu futs futu ggfg gggg ggss glug glut guff gugg gugu gulf gull guls gult gulu guss gust guts gutt gutu guus lfts lgfl lgts llll lsts ltgs luff luft lufu lugg lugs lugu lull lulu luss lust luts sfls sfss sfsu sfts sggg sggs sgls sgss sgts slft slst slsu slts slug slut ssfl ssgs ssgt sslt sssf ssss sstl ssts stfu stlg stlt stsf stss stuf stug stul stus stut suf- suff sufs sufu sug- sugg sul- sulf sull sult sulu sus- suss sust susu sutu suus tfss tgts tsfl tsgt tssf tssg tsst tsts ttff ttss tttt ttul tuff tuft tufu tugg tugs tugu tull tulu tuss tust tutl tuts tutt tutu uggs uggt uguu ulft ults ultt ulul ulus usfl usfs uslu ussf usss usst ussu usts usul usus utsl uttu utug uulu uutf uuuu