dddd ddot ddpo ddps ddss ddts didi dido dids diii diis diop dior dios diot dipo dipp dips dipt dird dirr dirs dirt dis- disd disi diso disp diss dist diti dito dits ditt dod- dodd dodi dodo dods doid dois doit dood doop door doos doot dopo dopp dopr dops dopt dord dori doro dorp dorr dors dort dosi doso doss dost dotd doti doto dots dott dpdt dpos dpsd dpst dpts drip drit drod drop drot drrs drsp dsdp dsdr dsip dsos dsps dspt dsri dsrp dsrr dssi dssp dsst dsto dsts dtdp dtor dtot dtss dttp iddo idid idio idir idis idos idps idro idso idss idtp idts iiii iiio iiis iiit iioi iioo iiop iios iirs iisd iisi iisp iisr iist iitr iitt iod- iodd iodo ioii ioio ioit iooi iooo ioos iops iori iors ioso ioto ipdi ipid ipod ipop ipos ippo ippr ipri ipsi ipso ipsp ipss ipto ipts irdo irdp irds iri- irid irio irip iris irod irop irps irri irrs irsp irti irtp irts isds isis isit iso- isop isor isos ispr isps isri isrp issi isso issp issr isss istd isti isto istp istr ists itdo itis itoi itoo itor itos itri itrs itsi itso itsp itto oddd oddi odds odio odir odis odoo odop odor odos odot odrp odso odts oido oids oiii oios oirt oisd oist oiti oodi ooid oooo ooos oops oord oort oosi oost ootp oots opds opii opio opis opit opo- opor opos oppi oppo opps opsi opti opto opts ordo ords ori- orid orio oris orit oro- oror oros orot orpi orps orri orro orrs orsi orso orto orts osdi osii osip osis osoi osoo osor osos osrd osro ossd ossi osso osti ostr osts otis otit oto- otoo otor otos otpp otro otrs otso otti otto otts pdos pdpr pdrs pdsd pdss pido pids piip piot pipi pipo pipp pips piri piro pirr pirs pisd pisi piso piss pist piti pito pitr pits pitt pod- podd podi podo pods poid poio pois pood poop poor poos poot pop- popi popo popp pops popt pori poro porr pors port posi poso poss post potd poti poto pots pott ppds ppid ppod ppos pppd pppo pppp ppps ppss ppts pptt pri- prid prii pris pro- prod proo prop pros prot prpd prps prrd prri prrs prsd prsi prso prss prti prtp prtr psdi psdp psdr psds psid psip psis psoi psos pspi pspp pspr psps psrd psrp psso psst psts ptop ptpd ptrd ptsd rdio rdos rdso ridd ridi rido rids riis rios riot ripd ripi ripp ripr rips ript riri rirs risd risi riso risp riss rist riti rito rits ritt rodd rodi rodo rods roid roio roir rois roit rood rooi roop roor roos root ropo rops rori roro rort rosi roso rosp ross rost roti roto rotr rots rott rpdp rpii rpos rpps rptd rpts rrrr rrsp rsdd rsds rsid rsis rsos rspo rsps rstp rsts rtdt rtps rtss rttp rtts s-ii s-os sdds sdio sdot sdpr sdps sdrs sdss sidd sidi sido sidr sids siit siod siop sior sios siot sipi sipo sipp sips sipt siri siro sirp sirr sirs sirt sisd sisi siss sist sit- sitd siti sito sits sitt sodd sodo sods soir sois soit sood soop soor soos soot sopd sopi sopo sopp sops sord sori soro sorr sors sort sosi soso soss sost soto sotp sots spdp spdr spdt spio spip spir spis spit spod spoo spop spor spos spot sppd spps sprd spri spro sprs spsd spso spsp spss spst spto sptr spts sris sros srps srpt srsd srsp srtp srtr ssdd ssdp ssid ssis ssit ssop ssot sspo ssps sspt ssri ssrs sssi ssss sstd sstp ssts stds stid stio stip stir stis stit stod stoo stop stor stos stot stpd stpp stps strd stri stro strs stsi stss sttd sttr tdis tdor tdri tdss tidd tids tiit tiop tios tip- tipi tipo tipp tips tipt tird tiri tiro tirr tirs tisi tiso tiss tist titi tito titp tits titt todd todi todo tods todt toid tois toit tood toor toos toot top- topd topi topo topp tops topt tord tori toro torp torr tors tort tosi toso toss tost totd toti toto totr tots tott tpir tppd tppp tppr tprs tptp tptr tri- trio trip tris trit trod troi troo trop tros trot trpp trps trsd trsi trst trtr tsid tsis tsoi tsop tsos tspo tsps tspt tssi tssr tsst tsts ttop ttss tttt