-ing ffff ffii ffrr ffun fiff fifi fifo figg figo fiii fing fini finn fino finp fion fior fipp firn fnuf fofo fogg fogi fogn fogo foin fong fono foof foon fopp for- forg fori forn foro forr foug foun foup four fpin fprf frig frin frio frip frog fron frop frou frug frun fuff fufu fugi fugo fugu fuig fuir funf fung fuor fur- furg furi furn furo furr gfor ggfg gggg ggpo ggrn giff gifu gigg gigi gign gigo ging gini ginn gino ginu giog gioi gion giop gipf gipi gipp girg giri girn giro girr giru giur gnin gnip gnof gnoo gnrr goff gofr gofu gogi gogo goif goin goip gon- gong goni gonn gono gonu goof goog gooi goon goop goor gopi gopo gopu gorf gorg gori gorn goro gorp gorr gou- gouf goug goun goup gour gpgp gpip gprp grif grig grin grip grni grof grog groi gron groo grop gror grou grrr gruf grug grui grun grur guff gugg gugi gugu guin gung gunn gurg guri gurn guro gurr guru i-go i-no ifni ifno ifnr ifor ifpo ifrf ifri igni igno ignu igon igoo igor igri iiii iiio iino iioi iioo iiop iipf infi info infp ingo inig inni inno innr innu ino- inoi inon inor inou inp- inpi inpp inri inro inui inun inup ioii ioio ioni ionn iono ioof iooi iooo iorg iori ioug ioun ipin ipop ippf ippo ippr ipri ipur irfu iri- irig irin irio irip iron irop irri irun iuiu iuno iupp n-ii n-up nfff nfip nfon ngio ngon ngor ngou ngri ngur nguu niff nigg nigo niip niir niiu ning nini nino niog nion nioo niou nipr niro niru niur nngn nnnn nnpi nnpr nofi nogg nogo noif noin noio noir non- nong noni nonn nono nonu noo- noon nooo noop noor nor- norf norg nori norn noro norr noun noup nour npif npin npri nron nrpn nuff nuin nung nunn nuno nuon nuri nurn nurp nurr nuru off- offo offr offu ofgo ofno ofor ogfr oggi ogin ogni ogog ogoi ogon ogou ogpu ogri ogro ogui ogun oigo oiii oion ongi ongo ongu onir onni onno onon onor onpg onpu onup onur ooff oooo opii opin opio opng opo- opon opor oppi oppo orff orfi orfu orgn orgo ori- orif orig orin orio orni orno oro- orof oron oror orpi orri orro orup ouff ouii ouin ouir oun- oung our- ourn ouro ouu- pfff pffr pfui pgou pgpu pgup piff pigf pigg pign pigo pigp pigu piip ping pini pinn pino pinp pinu pion pipi pipo pipp pirg piri pirn piro pirr piru pnin pnon pnpo pnpp pnro pnup poff pofi pogg pogo poin poio pong poni pono ponp poof poon poop poor pop- popi popo popp porg pori porn poro porr pouf poui poun poup pour ppgi ppif ppig pppn pppo pppp pprf ppru ppur pri- prif prig prii prin prnp pro- prof prog pron proo prop prou prri pruf pruu puff pugo pugu puig puin puir puiu pung puno punu pupi pupu pur- purg puri puro purp purr puru riff rifu rigg rigi rigo rigu riif riin rinf ring rinn rino rion riou ripi ripp ripr riri rnin roff rofo rogg rogi rogo roif roig roin roio roir roiu rong roni rono roof roog rooi roon roop roor ropo rori roro roru rouf roun roup rpii rpof rpon rppn rrif rrrr rrun ruff rufo rugg rugi ruif ruin runf rung runi runn runo rupp ruri ruro rurp ruru ruun u-rp ufip uggo ugni ugri ugro ugur uguu uipi uirr unfp ungo ungp ungu uni- unif unii unin unio unir unni unno unon unop unrf unro uofg uofo uor- upgo upin upnp upon upor uppp uppu upri upup urff urfi urgi urgu urif urin uriu urni uro- uroo urpo urri urun urup urur uuni uuno uuri uuuu