llll llps llyr lppl lprp lpss lpys lrps lrpu lrrr lrry ls-r lspl lspr lssp lssr lull lulu lupu lurs lury luss luup luys lyly lys- lysl lyss plpp plss plup plur plus pppp ppps ppru ppss ppur prlr prls prps prrs prsl prss prus pruu prys pspp pspr psps psrp psy- psys pull pulp puls pulu puly pupl pups pupu pupy pur- purl purp purr purs puru pury puss puy- puys pyl- pyll pypy pyr- pyrl pyry pyss rlls rlys rpls rpps rrrr rrsp rslp rsps rssl rull ruly rupp rupy rurp rurs ruru russ rusu rusy ruyl ruys rysy sllp slpp slps slrp slrs slsu slup slur slyp slys splp splr spls spps sprs spry spsp spss spur spus spy- spyr spys srps srsp sslp sspl ssps ssrl ssrs ssss sul- sull sulp sulu sup- supp supr sups supy sur- surp surr surs suru sury sus- susp suss susu susy suus suyr suyu syl- syll syls syrs syry syss u-rp ullr ully ulul ulus ulys uppp uppu uppy upsy upup urls urry urss ursu ursy urup urur urus uslp uslu uspp usps ussr usss ussu ussy usul usus uulu uuuu ylls yrly yssu yuls yulu yups yury yuyu yyyy