dddd ddot ddry dhod dhor do-x dod- dodd dodo dody dohr dood door doot dord doro dorr dort dory dotd doth doto dott doty doxy doyo drod droh drot droy dry- dthd dtor dtot dtox dttx dtxt dxdr dxht dxrd dxrr dxrt dxrx dxty dxxr dxxx dxyr dydd dyhh dyhr dyht dyo- dyoo dyor dyot dyr- dyro dyrt dyrx dyt- dytx dyty dyxr dyxx dyxy dyyr hdod hdtt hdyd hhhh hodh hodr hody hoho hood hoor hoot hoox hord horo horr hort hory hotd hoth hoto hotr hott hoyt hrod htoh httr hydd hydr hydt hyo- hyrd hyrt oddd oddy odoh odoo odor odot odry odyr ohho ohoh ohto ohyo ooho oooh oooo oord oort oory ooty ordo oro- oror orot oroy orro orry orth orto oryx otho othr oto- otoh otoo otor otoy otro otry otto otyr oxo- oxox oxxo oxy- oxyd rhod rhoh rhyd rodd rodo rody rohr rohy rood roor root roox roro rort rory roth roto rotr rott roty roxo roxy royd royt rrrr rtdt rydy ryoh ryot ryth rytt ryyt tdor thdr thoo thor thot thro thtr thyh thyx to-y todd todo todt tody toho tood tooh toor toot tord toro torr tort torx tory totd toth toto totr tott toty tox- toxo toxt toyo toyt trod troo trot trox troy trtr try- tryo ttoy tttt ttyd txtr tydd tydy tyht tyr- tyro tyrr tytd tyto tytt tyty tyxt xoro xoth xoxo xoyo xrod xtro xtry xxxo xxxx xxxy xyr- ydyt yhyd yodh yodo yoho yood yoot yord yoro yort yory yott yoyo yrho ytht yyyy