dddd ddot ddpo didi dido diii diop dior diot dipo dipp dipt dird dirr dirt diti dito ditt dod- dodd dodi dodo doid doit dood doop door doot dopo dopp dopr dopt dord dori doro dorp dorr dort dotd doti doto dott dpdt drip drit drod drop drot dtdp dtor dtot dttp iddo idid idio idir idro idtp iiii iiio iiit iioi iioo iiop iitr iitt iod- iodd iodo ioii ioio ioit iooi iooo iori ioto ipdi ipid ipod ipop ippo ippr ipri ipto irdo irdp iri- irid irio irip irod irop irri irti irtp itdo itoi itoo itor itri itto oddd oddi odio odir odoo odop odor odot odrp oido oiii oirt oiti oodi ooid oooo oord oort ootp opii opio opit opo- opor oppi oppo opti opto ordo ori- orid orio orit oro- oror orot orpi orri orro orto otit oto- otoo otor otpp otro otti otto pdpr pido piip piot pipi pipo pipp piri piro pirr piti pito pitr pitt pod- podd podi podo poid poio pood poop poor poot pop- popi popo popp popt pori poro porr port potd poti poto pott ppid ppod pppd pppo pppp pptt pri- prid prii pro- prod proo prop prot prpd prrd prri prti prtp prtr ptop ptpd ptrd rdio ridd ridi rido riot ripd ripi ripp ripr ript riri riti rito ritt rodd rodi rodo roid roio roir roit rood rooi roop roor root ropo rori roro rort roti roto rotr rott rpdp rpii rptd rrrr rtdt rttp tdor tdri tidd tiit tiop tip- tipi tipo tipp tipt tird tiri tiro tirr titi tito titp titt todd todi todo todt toid toit tood toor toot top- topd topi topo topp topt tord tori toro torp torr tort totd toti toto totr tott tpir tppd tppp tppr tptp tptr tri- trio trip trit trod troi troo trop trot trpp trtr ttop tttt