dddd ddot ddss ddts dntt dod- dodd dodo dods dond donn dono donr dons dont dood doon door doos doot dord dorn doro dorr dors dort doso doss dost dotd doto dots dott drno drod dron drot drrs dsdr dsos dsrr dssn dsst dstn dsto dsts dtor dtot dtss nddo ndnt ndor ndos ndss nnnn nnos nnot nnss nntn nodo nods non- nonn nono nons nont noo- noon nooo noor noos noot nor- nord norn noro norr nors nort nos- noss nost not- noto nots nott nrds nron nrrd nrts nsds nsdt nsnr nsos nsrd nsso nssr nsss nstd nsts ntds ntnd ntss ntto nttr oddd odds odon odoo odor odos odot odso odts ondo onno onod onon onor onos onso onst ont- onto oons oont oooo ooos oord oort oost oots ordn ordo ords orno orns oro- oron oror oros orot orro orrs orso orto orts osno osnr osoo osor osos osrd osro ossd osso ostr osts oto- oton otoo otor otos otro otrs otso otto otts rdos rdso rnds rnnt rnod rnot rntd rodd rodo rods rond rono rons ront rood roon roor roos root roro rort roso ross rost rotn roto rotr rots rott rrrr rsdd rsds rsnn rsno rsnr rsos rsts rtdt rtnd rtns rtss rtts s-os sdds sdot sdrs sdss snns snod snoo snor snos snot snrs snsd sntr sodd sodo sods son- sond sono sons sont sood soon soor soos soot sord sorn soro sorr sors sort soso soss sost sotn soto sots srnn srno sros srsd srtr ssdd ssns ssot ssrs ssss sstd ssts stds stnd stnn stnr stns stod ston stoo stor stos stot strd strn stro strs stss sttd sttr tdor tdss tndd tnts todd todo tods todt tonn tono tons tood toon toor toos toot tord torn toro torr tors tort toso toss tost totd toto totr tots tott trno trod tron troo tros trot trsd trst trtr tsos tssr tsst tsts tton ttss tttt