-ing ffff ffii ffrr fiff fifi fifo figg figo fiii fing fini finn fino finp fion fior fipp firn fofo fogg fogi fogn fogo foin fong fono foof foon fopp for- forg fori forn foro forr fpin fprf frig frin frio frip frog fron frop gfor ggfg gggg ggpo ggrn giff gigg gigi gign gigo ging gini ginn gino giog gioi gion giop gipf gipi gipp girg giri girn giro girr gnin gnip gnof gnoo gnrr goff gofr gogi gogo goif goin goip gon- gong goni gonn gono goof goog gooi goon goop goor gopi gopo gorf gorg gori gorn goro gorp gorr gpgp gpip gprp grif grig grin grip grni grof grog groi gron groo grop gror grrr i-go i-no ifni ifno ifnr ifor ifpo ifrf ifri igni igno igon igoo igor igri iiii iiio iino iioi iioo iiop iipf infi info infp ingo inig inni inno innr ino- inoi inon inor inp- inpi inpp inri inro ioii ioio ioni ionn iono ioof iooi iooo iorg iori ipin ipop ippf ippo ippr ipri iri- irig irin irio irip iron irop irri n-ii nfff nfip nfon ngio ngon ngor ngri niff nigg nigo niip niir ning nini nino niog nion nioo nipr niro nngn nnnn nnpi nnpr nofi nogg nogo noif noin noio noir non- nong noni nonn nono noo- noon nooo noop noor nor- norf norg nori norn noro norr npif npin npri nron nrpn off- offo offr ofgo ofno ofor ogfr oggi ogin ogni ogog ogoi ogon ogri ogro oigo oiii oion ongi ongo onir onni onno onon onor onpg ooff oooo opii opin opio opng opo- opon opor oppi oppo orff orfi orgn orgo ori- orif orig orin orio orni orno oro- orof oron oror orpi orri orro pfff pffr piff pigf pigg pign pigo pigp piip ping pini pinn pino pinp pion pipi pipo pipp pirg piri pirn piro pirr pnin pnon pnpo pnpp pnro poff pofi pogg pogo poin poio pong poni pono ponp poof poon poop poor pop- popi popo popp porg pori porn poro porr ppgi ppif ppig pppn pppo pppp pprf pri- prif prig prii prin prnp pro- prof prog pron proo prop prri riff rigg rigi rigo riif riin rinf ring rinn rino rion ripi ripp ripr riri rnin roff rofo rogg rogi rogo roif roig roin roio roir rong roni rono roof roog rooi roon roop roor ropo rori roro rpii rpof rpon rppn rrif rrrr