dddd ddot ddpo dfdt dfrf dfri dftr didi dido dif- diff diii dilf dili dill dilo diol diop dior diot dipl dipo dipp dipt dird dirl dirr dirt diti dito ditt dlii dlil dlit dod- dodd dodi dodo doff doid doil doit dold dolf doli doll dolo dolp dolt dood doof dool doop door doot dopo dopp dopr dopt dord dorf dori doro dorp dorr dort dotd doti doto dott dpdt dpll drif dril drip drit drod drof drol drop drot dtdp dtor dtot dtpl dtrl dttp fdlr fdot fdti fdtl ffff ffii ffrr fftf fidf fido fiff fifi fifo fift fiii fiil fild fili fill filo fior fipp fiti fitt fldr flid flii flip flit flod floo flop flor flot fofo foid foil fold foli foll folo folr folt food foof fool foot fopp for- ford fori forl foro forr fort foti foto fotp fott fpdl fpdt fprf frid fril frio frip frit frol frop frot frpd ft-l ftdi ftii ftop iddo idfp idid idil idio idir idli idol idrf idro idtp ifid ifil ifit ifor ifpo ifrf ifri ifto iiii iiio iiit iioi iioo iiop iipf iitr iitt ilio ilir ilit ill- illd illi illo illp illt iloo ilot ilpr iod- iodd iodo ioii ioio ioit iolo ioof iooi iooo iopl iori iotf ioto ipdi ipid ipil iplo ipod ipop ippf ippo ippr ipri ipto irdo irdp iri- irid iril irio irip irod irop irri irtf irti irtp itdo itif itil itll itof itoi itol itoo itor itrf itri ittf itto lddp ldif lfrd lftp lidl lido liff lifl lifo lift liii liir lili lill lilo lilt lio- liod lior lip- lipi lipl lipo lipp lird liri lirl liro lirp lirr lirt litd liti litl lito litr litt lldp llll llod lloo lodi loff lofi loft loid loif loir loit lold loli loll lolo lood loof lool loop loor loot lopi lopp lord lori loro lotd loti lotl loto lotr lott lpfp lpft lpod lppl lprp lrdd lrif lroi lrrr lttr oddd oddi odio odir odoo odop odor odot odrl odrp ofdr off- offo offr ofid ofit ofor oftp oido oiii oirt oiti olid olio olit olli ollo olof olor olot oodi ooff ooid oold oolo oooo oord oort ootp opii opio opit opo- opor oppi oppo opti opto ordo orff orfi ori- orid orif oril orio orit orlo oro- orof oror orot orpi orri orro orto otfp otif otit oto- otof otoo otor otpp otro otti otto pdpr pfff pffr pfft pfit pfli pido piff piip pil- pild pili pill pilo pilt piot pipi pipo pipp piri pirl piro pirr pitf piti pito pitr pitt pldt plff plid plif plio plip plit plod ploo plop plot plpp plri pltf pltt pod- podd podi podo poff pofi poid poil poio pold poli poll polo polt pood poof pool poop poor poot pop- popi popo popp popt pori poro porr port potd potf poti poto pott ppid ppif ppli pplo ppod pppd pppo pppp pprf pptt pri- prid prif prii prlr pro- prod prof prol proo prop prot prpd prrd prri prti prtp prtr ptld ptol ptop ptpd ptrd ptrf rdio rfdi rffl rfid ridd ridi rido riff rift riif rill rilo rilp riol riot ripd ripi ripl ripp ripr ript riri riti ritl rito ritt rldt rlif rodd rodi rodo roff rofl rofo roid roif roil roio roir roit rold rolf roll rolo rolp rolt rood roof rooi rool roop roor root ropo rori roro rort roti rotl roto rotr rott rpdp rpii rpof rptd rrif rrrr rtdt rtlt rttp tdff tdil tdor tdri tfot tfpt tftp tidd tiff tifo tift tiit tild till tilo tilr tilt tiop tip- tipi tipo tipp tipt tird tiri tirl tiro tirr titi tito titp titt tldp tldr tlli todd todi todo todt toff tofi tofo toft toid toil toit tol- told toli toll tolo tolt tood toof tool toor toot top- topd topf topi topo topp topt tord torf tori toro torp torr tort totd toti toto totr tott tpdf tpir tpld tpol tppd tppp tppr tptp tptr trfd trfr tri- trif tril trio trip trit trod troi troo trop trot trpp trtr ttff ttop tttt