-ing ffff ffii ffrr fftf fiff fifi fifo fift figg figo fiii fing fini finn fino fint fion fior firn fiti fitt fofo fogg fogi fogn fogo foin fong fono font foof foon foot for- forg fori forn foro forr fort foti foto fott frig frin frio frit frog fron frot ftii gfor ggfg gggg ggrn giff gift gigg gigi gign gigo ging gini ginn gino giog gioi gion girg giri girn giro girr girt gito gnin gnit gnof gnoo gnrr gnti goff gofr gogi gogo goif goin goit gon- gong goni gonn gono goof goog gooi goon goor goot gorf gorg gori gorn goro gorr gort goti goto gott grif grig grin grit grni grof grog groi gron groo gror grot grrr gtfo i-go i-no ifit ifni ifno ifnr ifor ifrf ifri iftn ifto igni igno igon igoo igor igot igri iiii iiio iiit iino iioi iioo iitr iitt infi info ingo inig init inni inno innr ino- inoi inon inor inot inri inro intg inti intn into intr iogt ioii ioio ioit ioni ionn iono ioof iooi iooo iorg iori iotf ioto iri- irig irin irio iron irri irtf irti itgo itif itin itno itof itoi iton itoo itor itrf itri ittf itto n-ii nfff nfon nfto ngio ngon ngor ngri ngtn niff nift nigg nigo nigt niir niit ning nini nino niog nion nioo niro nirt nitf niti nito nitr nngn nnit nnnn nnot nntn nofi nogg nogo nogt noif noin noio noir noit non- nong noni nonn nono nont noo- noon nooo noor noot nor- norf norg nori norn noro norr nort not- noti noto nott nron ntof ntto nttr off- offo offr ofgo ofit ofno ofor ogfr oggi ogin ogni ogog ogoi ogon ogri ogro oigo oiii oint oion oirt oiti ongi ongo onir onit onni onno onon onor ont- onti onto ooff oont oooo oort orff orfi orgn orgo ori- orif orig orin orio orit orni orno oro- orof oron oror orot orri orro orto otif otin otit oto- otof otog oton otoo otor otro otti otto rgit rgtr riff rift rigg rigi rigo riif riin rinf ring rinn rino rion riot riri riti rito ritt rnin rnnt rnot roff rofo rogg rogi rogo roif roig roin roio roir roit rong roni rono ront roof roog rooi roon roor root rori roro rort rotg roti rotn roto rotr rott rrif rrrr tfin tfot tgif tiff tifo tift tigi tigr tiit ting tini tinn tino tint tion tiri tiro tirr titi tito titt toff tofi tofo toft togo togr togt toit tong toni tonn tono toof toon toor toot torf torg tori torn toro torr tort toti toto totr tott trfr tri- trif trig trin trio trit trng trno trog troi tron troo trot trtr ttff ttfn tton tttt