dddd ddot ddss ddts didi dido dids diii diis dior dios diot dird dirr dirs dirt dis- disd disi diso diss dist diti dito dits ditt ditz dizi dizz dod- dodd dodi dodo dods doid dois doit dood door doos doot dord dori doro dorr dors dort dosi doso doss dost dotd doti doto dots dott dozi dozo drit drod drot droz drrs dsdr dsos dsri dsrr dssi dsst dsto dsts dtor dtot dtss dzor dzos dzrr dzso dzsr dzst iddo idid idio idir idis idos idro idso idss idts iiii iiio iiis iiit iioi iioo iios iirs iisd iisi iisr iist iitr iitt iod- iodd iodo ioii ioio ioit iooi iooo ioos iori iors ioso ioto irdo irds iri- irid irio iris irod irri irrs irti irts isds isis isit iso- isor isos isri issi isso issr isss istd isti isto istr ists itdo itis itoi itoo itor itos itri itrs itsi itso itto izod izso izzo oddd oddi odds odio odir odis odoo odor odos odot odso odts odzi oido oids oiii oios oirt oisd oist oiti oitz oodi ooid oooo ooos oord oort oosi oost oots oozi ordo ords ori- orid orio oris orit oro- oror oros orot oroz orri orro orrs orsi orso orto orts orzo osdi osii osis osoi osoo osor osos osrd osro ossd ossi osso osti ostr osts otis otit oto- otoo otor otos otro otrs otso otti otto otts otzi ozd rdio rdos rdso ridd ridi rido rids riis rios riot rioz riri rirs risd risi riso riss rist riti rito rits ritt ritz rizi rizz rodd rodi rodo rods roid roio roir rois roit roiz rood rooi roor roos root rooz rori roro rort rosi roso ross rost roti roto rotr rots rott rozi rozz rrrr rsdd rsds rsid rsis rsos rsts rtdt rtss rtts s-ii s-os sdds sdio sdot sdrs sdss sidd sidi sido sidr sids siit siod sior sios siot siri siro sirr sirs sirt sisd sisi siss sist sit- sitd siti sito sits sitt sitz sizz sodd sodo sods soir sois soit sood soor soos soot sord sori soro sorr sors sort sosi soso soss sost soto sots soz- sozi sris sros srsd srtr ssdd ssid ssis ssit ssot ssri ssrs sssi ssss sstd ssts stds stid stio stir stis stit stod stoo stor stos stot strd stri stro strs stsi stss sttd sttr szis szod szot szss tdis tdor tdri tdss tidd tids tiit tios tird tiri tiro tirr tirs tisi tiso tiss tist titi tito tits titt titz tizi tizz todd todi todo tods todt toid tois toit tood toor toos toot tord tori toro torr tors tort tosi toso toss tost totd toti toto totr tots tott tozo tri- trio tris trit triz trod troi troo tros trot trsd trsi trst trtr tsid tsis tsoi tsos tssi tssr tsst tsts ttss tttt tzzt z-ro zidi ziri ziro zisd zisi zist ziti zito zits zizi zizz zodd zodi zoid zoio zois zoo- zoos zoot zord zori zoro zors zort zoso zoss zoti zots zott zotz zozo zsss ztst zzzs zzzz