-ous llll lloo llps loll lolo lols lool loop loor loos lopp lops lopu loro lors loso losp loss loul loup lour lous louu lppl lprp lpss lrps lrpu lrrr ls-r lspl lspr lsso lssp lssr lull lulu lupo lupu lurs luso luss luup ollo olor olos olur oolo oooo ooos oops oous opls opo- opor opos oppo opps opsu opus orlo orlu oro- oror oros orps orro orrs orso orsu orup orus oslo osoo osor osos osro osso ossu osul ouls oulu our- ouro ours ouu- ploo plop plos plou plpp plss plup plur plus poll polo pols polu pool poop poor poos pop- popo popp pops poro porr pors poso poss poul poup pour pous pplo ppos pppo pppp ppps ppru ppss ppur prlr prls pro- prol proo prop pros prou prps prrs prsl prso prss prus pruu psol psos psou pspp pspr psps psrp psso pull pulo pulp puls pulu pupl pups pupu pur- purl puro purp purr purs puru puss rlls roll rolo rolp rool roop roor roos ropo rops roro roru roso rosp ross roul roup rous rpls rpos rpps rrrr rrsp rslp rsos rspo rsps rssl rull rulo rupp ruro rurp rurs ruru ruso russ rusu s-os sllp sloo slop slos slpp slps slrp slrs slsu slup slur soll solo solp solr sols sool soop soor soos sopo sopp sops sopu soro sorr sors soru soso soss soul soup sour sous splo splp splr spls spoo spop spor spos spps spro sprs spso spsp spss spur spus sros srps srsp sslp ssop sspl sspo ssps ssrl ssrs ssss sul- sull sulo sulp sulu suor suos sup- supo supp supr sups sur- suro surp surr surs suru sus- suso susp suss susu suus u-rp ullo ullr ulo- ulos ulul ulus uor- uplo upor upos uppp uppu upup urls uro- urol uroo urpo urso urss ursu urup urur urus uslp uslu usos uspo uspp usps ussr usss ussu usul usus uulu uuuu