-ing ffff ffii ffrr ffun fiff fifi fifo figg figo fiii fing fini finn fino fion fior firn fnuf fofo fogg fogi fogn fogo foin fong fono foof foon for- forg fori forn foro forr foug foun four fr-v frig frin frio frog fron frou frug frun fuff fufu fugi fugo fugu fuig fuir funf fung fuor fur- furg furi furn furo furr gfor ggfg gggg ggrn giff gifu gigg gigi gign gigo ging gini ginn gino ginu giog gioi gion girg giri girn giro girr giru giur gnin gnof gnoo gnrr goff gofr gofu gogi gogo goif goin gon- gong goni gonn gono gonu goof goog gooi goon goor gorf gorg gori gorn goro gorr gou- gouf goug goun gour govi grif grig grin grni grof grog groi gron groo gror grou grov grrr gruf grug grui grun grur guff gugg gugi gugu guin gung gunn gurg guri gurn guro gurr guru gvvv i-go i-no ifni ifno ifnr ifor ifrf ifri igni igno ignu igon igoo igor igri iiii iiio iino iioi iioo infi info ingo inig inni inno innr innu ino- inoi inon inor inou inri inro inui inun ioii ioio ioni ionn iono ioof iooi iooo iorg iori ioug ioun irfu iri- irig irin irio iron irov irri irun iuiu iuno ivig ivin ivon ivor n-ii nfff nfon ngio ngon ngor ngou ngri ngur nguu niff nigg nigo niir niiu ning nini nino niog nion nioo niou niro niru nirv niur nivo nivr nngn nnnn nofi nogg nogo noif noin noio noir non- nong noni nonn nono nonu noo- noon nooo noor noov nor- norf norg nori norn noro norr norv noun nour nov- novi novo nron nuff nuin nung nunn nuno nuon nuri nurn nurr nuru nurv nuvo nvfr nvir off- offo offr offu ofgo ofno ofor ogfr oggi ogin ogni ogog ogoi ogon ogou ogri ogro ogui ogun oigo oiii oion ongi ongo ongu onir onni onno onon onor onur ooff oooo orff orfi orfu orgn orgo ori- orif orig orin orio orni orno oro- orof oron oror orri orro orvr ouff ouii ouin ouir oun- oung our- ourn ouro ouu- ovi- ovni ovo- ovon ovoo riff rifu rigg rigi rigo rigu riif riin rinf ring rinn rino rion riou riri rivo rnin roff rofo rogg rogi rogo roif roig roin roio roir roiu rong roni rono roof roog rooi roon roor rori roro roru rouf roun rovi rovo rrif rrrr rrun ruff rufo rugg rugi ruif ruin runf rung runi runn runo ruri ruro ruru ruun ruvi ruvu uggo ugni ugri ugro ugur uguu uirr ungo ungu uni- unif unii unin unio unir univ unni unno unon unov unrf unro uofg uofo uor- uovo urff urfi urgi urgu urif urin uriu urni uro- uroo urri urun urur uuni uuno uuri uuuu uvgi uvri uvvu vfor viff vigo vigr viii ving vini vino vinu vion virg viri viro virr viru vivi vivo vnir voff vofr vogu voin voio voir voni vonn voog voor vor- vori voro voru voun vour vrin vrio vrnn vron vugg vugo vuir vuno vurg vvog vvvv