iiii iiio iiis iiit iioi iioo iiop iios iirs iisi iisp iisr iist iitr iitt ioii ioio ioit iooi iooo ioos iops iori iors ioso ioto ipop ipos ippo ippr ipri ipsi ipso ipsp ipss ipto ipts iptv ipvs iri- irio irip iris irop irov irps irri irrs irsp irti irtp irts irvs isis isit iso- isop isor isos ispr isps isri isrp issi isso issp issr isss isti isto istp istr ists itis itoi itoo itor itos itri itrs itsi itso itsp itto ivor ivrs oiii oios oirt oist oiti oooo ooos oops oort oosi oost ootp oots opii opio opis opit opo- opor opos oppi oppo opps opsi opti opto opts ori- orio oris orit oro- oror oros orot orpi orps orri orro orrs orsi orso orto orts orvr orvs osii osip osis osoi osoo osor osos osov osro ossi osso osti ostr osts otis otit oto- otoo otor otos otov otpp otro otrs otso otti otto otts ovi- ovis ovo- ovoo ovot ovpp piip piot pipi pipo pipp pips piri piro pirr pirs pisi piso piss pist piti pito pitr pits pitt pivo poio pois poop poor poos poot pop- popi popo popp pops popt pori poro porr pors port posi poso poss post poti poto pots pott povo povs ppos pppo pppp ppps ppss ppts pptt pptv pri- prii pris priv pro- proo prop pros prot prov prps prri prrs prsi prso prss prsv prti prtp prtr psip psis psoi psos psov pspi pspp pspr psps psrp psso psst psts pstv psvt ptop pvts riis rios riot ripi ripp ripr rips ript riri rirs risi riso risp riss rist riti rito rits ritt rivo rivp rivs roio roir rois roit rooi roop roor roos root ropo rops rori roro rort rosi roso rosp ross rost roti roto rotr rots rott rovi rovo rovs rpii rpos rpps rpts rrrr rrsp rsis rsos rspo rsps rstp rsts rsvp rtps rtss rttp rtts rtvi rvsp s-ii s-iv s-os s-vt siit siop sior sios siot sipi sipo sipp sips sipt siri siro sirp sirr sirs sirt sisi siss sist sit- siti sito sits sitt sivi soir sois soit soop soor soos soot sopi sopo sopp sops sori soro sorr sors sort sosi soso soss sost sosv soto sotp sots sovo sovs spio spip spir spis spit spiv spoo spop spor spos spot spps spri spro sprs spso spsp spss spst spto sptr spts sris sros srps srpt srsp srtp srtr srtv ssis ssit ssop ssot sspo ssps sspt ssri ssrs sssi ssss sstp ssts ssvp st-v stio stip stir stis stit stoo stop stor stos stot stpp stps stri stro strs stsi stss sttr stvs svir svit svor svtr tiit tiop tios tip- tipi tipo tipp tips tipt tiri tiro tirr tirs tisi tiso tiss tist titi tito titp tits titt tivi tivo tois toit toor toos toot top- topi topo topp tops topt topv tori toro torp torr tors tort torv tosi toso toss tost toti toto totr tots tott tovo tpir tppp tppr tprs tptp tptr tri- trio trip tris trit troi troo trop tros trot trpp trps trpv trsi trst trtr trvs tsis tsiv tsoi tsop tsos tspo tsps tspt tssi tssr tsst tsts tsvi ttop ttss tttt tvis tvos tvri tvro tvrr tvss tvtv viii vios vipr vips viri viro virr virt visi viso visp viss vist viti vito vitt vivi vivo voio voip voir vois voit voor voot vopt vor- vori voro vors vort vosi voso voss voto votp vpro vrio vris vrot vrsi vrto vsip vsop vsrp vsto vt-i vtpr vtrs vvvv