-ing ffff ffii ffrr fftf ffun fiff fifi fift figg fiii fing fini finn fint firn fiti fitt fitz fizz fnuf frig frin frit friz frug frun fruz ftii fuff fufu fugi fugu fuig fuir fuit funf fung funt fur- furg furi furn furr furt futi futu futz fuzz fzzt ggfg gggg ggrn giff gift gifu gigg gigi gign ging gini ginn ginu girg giri girn girr girt giru giur gizi gizz gnin gnit gnrr gnti grif grig grin grit griz grni grrr gruf grug grui grun grur grut gruz guff gugg gugi gugu guin gung gunn gunt gunz gurg guri gurn gurr gurt guru guti gutt gutu gzin ifit ifni ifnr ifrf ifri iftn igni ignu igri iiii iiit iitr iitt infi inig init inni innr innu inri intg inti intn intr intu inui inun irfu iri- irig irin irri irtf irti irun itif itin itrf itri ittf itur iuiu n-ii nfff ngri ngtn ngur nguu niff nift nigg nigt niir niit niiu ning nini nirt niru nitf niti nitr nitz niur nngn nnit nnnn nntn ntnu ntru nttr ntui nuff nuin nuit nung nunn nunt nuri nurn nurr nurt nuru nutt nutu nutz nuzi rgit rgtr riff rift rifu rigg rigi rigu riif riin rinf ring rinn riri riti ritt ritu ritz rizi rizu rizz rnin rnnt rnut rrif rrrr rrun ruff ruft rugg rugi ruif ruin ruit ruiz runf rung runi runn runt ruri ruru ruti rutt rutu ruun ruzi tfin tgif tiff tift tigi tigr tiit tiiu ting tini tinn tint tinu tiri tirr tiru titi titt titu titz tizi tizz tnut trfr tri- trif trig trin trit triz trng trtr trug trun trut truu ttff ttfn tttt tuff tufi tuft tufu tugg tugu tuig tuin tuit tuiu tung tuni tunn tunu turf turg turi turn turr turt turu tuti tutt tutu tuzi tuzu tuzz tzur tzut tzzt uggt ugni ugri ugur uguu uint uirr ungu uni- unif unii unin unir unit unni unrf untz unut unuz urff urfi urft urgi urgu urif urin uriu urni urri urun urur urut uruz utin utri utti uttu utug uuni uuri uutf uuuu uzin uzun uzzi ziff zift zifu zigg zigi zinf zing zinn ziri ziti zizi zizz znng zrin zuft zuni zunz zurf zurn zurr zuru zuun zuzu zzzz