umsops musops usmops sumops msuops smuops umosps muosps uomsps oumsps mousps omusps usomps suomps uosmps ousmps soumps osumps msoups smoups mosups omsups somups osmups umspos muspos usmpos sumpos msupos smupos umpsos mupsos upmsos pumsos mpusos pmusos uspmos supmos upsmos pusmos spumos psumos mspuos smpuos mpsuos pmsuos spmuos psmuos umopss muopss uompss oumpss moupss omupss umposs muposs upmoss pumoss mpuoss pmuoss uopmss oupmss upomss puomss opumss poumss mopuss ompuss mpouss pmouss opmuss pomuss usopms suopms uospms ouspms soupms osupms uspoms supoms upsoms pusoms spuoms psuoms uopsms oupsms uposms puosms opusms pousms sopums ospums spoums psoums opsums posums msopus smopus mospus omspus sompus osmpus mspous smpous mpsous pmsous spmous psmous mopsus ompsus mposus pmosus opmsus pomsus sopmus ospmus spomus psomus opsmus posmus umsosp musosp usmosp sumosp msuosp smuosp umossp muossp uomssp oumssp moussp omussp usomsp suomsp uosmsp ousmsp soumsp osumsp msousp smousp mosusp omsusp somusp osmusp umssop mussop usmsop sumsop msusop smusop umssop mussop usmsop sumsop msusop smusop ussmop susmop ussmop susmop ssumop ssumop mssuop smsuop mssuop smsuop ssmuop ssmuop umossp muossp uomssp oumssp moussp omussp umsosp musosp usmosp sumosp msuosp smuosp uosmsp ousmsp usomsp suomsp osumsp soumsp mosusp omsusp msousp smousp osmusp somusp usosmp suosmp uossmp oussmp sousmp osusmp ussomp susomp ussomp susomp ssuomp ssuomp uossmp oussmp usosmp suosmp osusmp sousmp sosump ossump ssoump ssoump ossump sosump msosup smosup mossup omssup somsup osmsup mssoup smsoup mssoup smsoup ssmoup ssmoup mossup omssup msosup smosup osmsup somsup sosmup ossmup ssomup ssomup ossmup sosmup umspso muspso usmpso sumpso msupso smupso umpsso mupsso upmsso pumsso mpusso pmusso uspmso supmso upsmso pusmso spumso psumso mspuso smpuso mpsuso pmsuso spmuso psmuso umsspo musspo usmspo sumspo msuspo smuspo umsspo musspo usmspo sumspo msuspo smuspo ussmpo susmpo ussmpo susmpo ssumpo ssumpo mssupo smsupo mssupo smsupo ssmupo ssmupo umpsso mupsso upmsso pumsso mpusso pmusso umspso muspso usmpso sumpso msupso smupso upsmso pusmso uspmso supmso psumso spumso mpsuso pmsuso mspuso smpuso psmuso spmuso uspsmo supsmo upssmo pussmo spusmo psusmo usspmo suspmo usspmo suspmo ssupmo ssupmo upssmo pussmo uspsmo supsmo psusmo spusmo spsumo pssumo sspumo sspumo pssumo spsumo mspsuo smpsuo mpssuo pmssuo spmsuo psmsuo msspuo smspuo msspuo smspuo ssmpuo ssmpuo mpssuo pmssuo mspsuo smpsuo psmsuo spmsuo spsmuo pssmuo sspmuo sspmuo pssmuo spsmuo umopss muopss uompss oumpss moupss omupss umposs muposs upmoss pumoss mpuoss pmuoss uopmss oupmss upomss puomss opumss poumss mopuss ompuss mpouss pmouss opmuss pomuss umosps muosps uomsps oumsps mousps omusps umsops musops usmops sumops msuops smuops uosmps ousmps usomps suomps osumps soumps mosups omsups msoups smoups osmups somups umpsos mupsos upmsos pumsos mpusos pmusos umspos muspos usmpos sumpos msupos smupos upsmos pusmos uspmos supmos psumos spumos mpsuos pmsuos mspuos smpuos psmuos spmuos uopsms oupsms uposms puosms opusms pousms uospms ouspms usopms suopms osupms soupms upsoms pusoms uspoms supoms psuoms spuoms opsums posums ospums sopums psoums spoums mopsus ompsus mposus pmosus opmsus pomsus mospus omspus msopus smopus osmpus sompus mpsous pmsous mspous smpous psmous spmous opsmus posmus ospmus sopmus psomus spomus usopsm suopsm uospsm ouspsm soupsm osupsm usposm suposm upsosm pusosm spuosm psuosm uopssm oupssm upossm puossm opussm poussm sopusm ospusm spousm psousm opsusm posusm usospm suospm uosspm ousspm souspm osuspm ussopm susopm ussopm susopm ssuopm ssuopm uosspm ousspm usospm suospm osuspm souspm sosupm ossupm ssoupm ssoupm ossupm sosupm uspsom supsom upssom pussom spusom psusom usspom suspom usspom suspom ssupom ssupom upssom pussom uspsom supsom psusom spusom spsuom pssuom sspuom sspuom pssuom spsuom uopssm oupssm upossm puossm opussm poussm uospsm ouspsm usopsm suopsm osupsm soupsm upsosm pusosm usposm suposm psuosm spuosm opsusm posusm ospusm sopusm psousm spousm sopsum ospsum sposum psosum opssum possum sospum osspum ssopum ssopum osspum sospum spsoum pssoum sspoum sspoum pssoum spsoum opssum possum ospsum sopsum psosum sposum msopsu smopsu mospsu omspsu sompsu osmpsu msposu smposu mpsosu pmsosu spmosu psmosu mopssu ompssu mpossu pmossu opmssu pomssu sopmsu ospmsu spomsu psomsu opsmsu posmsu msospu smospu mosspu omsspu somspu osmspu mssopu smsopu mssopu smsopu ssmopu ssmopu mosspu omsspu msospu smospu osmspu somspu sosmpu ossmpu ssompu ssompu ossmpu sosmpu mspsou smpsou mpssou pmssou spmsou psmsou msspou smspou msspou smspou ssmpou ssmpou mpssou pmssou mspsou smpsou psmsou spmsou spsmou pssmou sspmou sspmou pssmou spsmou mopssu ompssu mpossu pmossu opmssu pomssu mospsu omspsu msopsu smopsu osmpsu sompsu mpsosu pmsosu msposu smposu psmosu spmosu opsmsu posmsu ospmsu sopmsu psomsu spomsu sopsmu ospsmu sposmu psosmu opssmu possmu sospmu osspmu ssopmu ssopmu osspmu sospmu spsomu pssomu sspomu sspomu pssomu spsomu opssmu possmu ospsmu sopsmu psosmu sposmu
Note: these 'words' (valid or invalid) are all the permutations of the word umsops. These words are obtained by scrambling the letters in umsops.