llll llps lppl lpss lpys lspl lssp lsts ltps ltsp lull lulu lupu luss lust luts luup luys luyt lyly lys- lysl lyss lyst lytt plpp plss pltt plup plus plyt pppp ppps ppss ppts pptt pspp psps psst psts pstu psy- psys pull pulp puls pult pulu puly pupl pups pupu pupy puss pust put- puts putt putu puy- puys puyt pyl- pyll pypy pyss pyst pytt sllp slpp slps slst slsu slts slup slut slyp slys splp spls spps spsp spss spst spts spus sput spy- spys sslp sslt sspl ssps sspt ssss sstl sstp ssts stlt stpp stps stss stul stup stus stut stuy styl stys sul- sull sulp sult sulu sup- supp sups supt supy sus- susp suss sust susu susy sutu suty suus suyu syl- syll syls sylt syss syst sytt tpls tppp tptp tput tsps tspt tsst tsts tsup tsys ttss tttt ttul ttyl ttys tull tulp tulu tuly tups tupu tupy tuss tust tutl tuts tutt tutu tuty tuyl tuys tyl- tyll typ- typp typy tyss tyst tytt tyty tyup tyus ully ults ultt ulul ulus ulys uppp uppu uppy upsy uptl upup uslp uslu uspp usps usss usst ussu ussy ustp usts usul usus utsl uttu uulu uuuu uyts ylls yput yssu yuls yulu yups yust yutu yuty yuyu yyyy