dddd ddot ddpo dfdt dfrf dfri dftr didi dido dif- diff diii din- dini dinn dino dint dion diop dior diot dipn dipo dipp dipt dird dirr dirt diti dito ditt dnpo dntp dntt dod- dodd dodi dodo doff doid doin doit dond doni donn dono donp donr dont dood doof doon doop door doot dopo dopp dopr dopt dord dorf dori dorn doro dorp dorr dort dotd doti doto dott dpdt dpin dpni drif drin drip drit drno drod drof dron drop drot dtdp dtor dtot dttp fdot fdti ffff ffii ffrr fftf fidf fido fiff fifi fifo fift fiii find fini finn fino finp fint fion fior fipp firn fiti fitt fndd fndn fndr fofo foid foin fond fono font food foof foon foot fopp for- ford fori forn foro forr fort foti foto fotp fott fpdt fpin fprf frid frin frio frip frit fron frop frot frpd ftdi ftii ftop i-no iddo idfp idid idin idio idir idno idon idrf idro idtp ifid ifit ifni ifno ifnr ifor ifpo ifrf ifri iftn ifto iiii iiio iiit iino iioi iioo iiop iipf iitr iitt ind- indi indo infi info infp inid init inni inno innr ino- inoi inon inor inot inp- inpi inpp inpt inri inro intd inti intn into intp intr iod- iodd iodo ioii ioio ioit ioni ionn iono ioof iooi iooo iori iotf ioto ipdi ipid ipin ipod ipop ippf ippo ippr ipri ipto irdo irdp iri- irid irin irio irip irod iron irop irri irtf irti irtp itdo itif itin itno itof itoi iton itoo itor itrf itri ittf itto n-ii nddo ndfi ndnp ndnt ndop ndor ndpd ndpr ndrf ndri nfff nfip nfon nfto nidd nidi nido niff nift niip niir niit nind nini nino nion nioo nipr nipt niro nirt nitf niti nito nitr nnit nnnn nnot nnpi nnpr nntn nodi nodo nofi noid noif noin noio noir noit non- noni nonn nono nont noo- noon nooo noop noor noot nor- nord norf nori norn noro norr nort not- noti noto nott npif npin nppd npri nprt nptn nron nrpn nrrd ntfp ntnd ntof ntop ntpd ntto nttr oddd oddi odin odio odir odon odoo odop odor odot odrp ofdr off- offo offr ofid ofit ofno ofor oftp oido oiii oint oion oirt oiti ondi ondo onir onit onni onno onod onon onor onpt ont- onti onto oodi ooff ooid oont oooo oord oort ootp opii opin opio opit opo- opon opor oppi oppo opti optn opto ordn ordo orff orfi ori- orid orif orin orio orit orni orno oro- orof oron oror orot orpi orri orro orto otfp otif otin otit oto- otof oton otoo otor otpp otro otti otto pdpn pdpr pfff pffr pfft pfit pido piff piip pind pini pinn pino pinp pint pion piot pipi pipo pipp piri pirn piro pirr pitf piti pito pitr pitt pnin pnon pnot pnpo pnpp pnro pntd pntr pod- podd podi podo poff pofi poid poin poio pond poni pono ponp pont pood poof poon poop poor poot pop- popi popo popp popt pori porn poro porr port potd potf poti poto pott ppid ppif ppod pppd pppn pppo pppp pprf pptn pptt pri- prid prif prii prin prnd prnp pro- prod prof pron proo prop prot prpd prrd prri prti prtp prtr ptop ptpd ptrd ptrf rdio rfdi rfid ridd ridi rido riff rift riif riin rind rinf rinn rino rion riot ripd ripi ripp ripr ript riri riti rito ritt rndf rndp rnin rnnt rnod rnot rntd rntp rodd rodi rodo roff rofo roid roif roin roio roir roit rond roni rono ront rood roof rooi roon roop roor root ropo rori roro rort roti rotn roto rotr rott rpdp rpii rpof rpon rppn rptd rptn rrif rrrr rtdt rtnd rttp tdff tdor tdri tfin tfnp tfot tfpt tftp tidd tiff tifo tift tiit tind tini tinn tino tint tion tiop tip- tipi tipo tipp tipt tird tiri tiro tirr titi tito titp titt tndd tndf todd todi todo todt toff tofi tofo toft toid toit toni tonn tono tood toof toon toor toot top- topd topf topi topo topp topt tord torf tori torn toro torp torr tort totd toti toto totr tott tpdf tpir tpon tppd tppp tppr tptp tptr trfd trfr tri- trif trin trio trip trit trno trod troi tron troo trop trot trpn trpp trtr ttff ttfn tton ttop tttt