-ing bbbb bbfn bbin bblb bbng bbrg bffl bfgf bgun bibb bibi bibl biff bifi bigb bigg bign bigu biin bili bill bilu bin- bing bini binn binu birb birg biri birl birn birr biru blin blir blni blrg blub bluf blur bnib bnin bnrr brfu brig bril brin brrr brug brun bubb bubi bubu buff bufr bugg bugi buif buin buir buiu bulb bulg buli bull bulu bunb bung buni bunn bunu bur- burb burg buri burl burn burr buru ffff ffii ffrr ffun fiff fifi figg figl fiii fiil fili fill filn fing fini finn firn flig flii flin flnb flub fluf flur fnuf frib frig fril frin frub frug frun fubb fubu fuff fufu fugi fugu fuig fuil fuir fuli full fulu funf fung fur- furg furi furl furn furr ggfg gggg ggrn gibb giff gifu gigg gigi gign gilf gilg gili gill ging gini ginn ginu girg giri girl girn girr giru giur gli- glib glin glrb glub glug glui glun glur gnib gnin gnrr grbr grib grif grig gril grin grni grrl grrr grub gruf grug grui grun grur gubb gubi gubu guff gugb gugg gugi gugu guib guil guin gulb gulf guli gull gulu gung gunn gurb gurg guri gurl gurn gurr guru ibfi ibri ifbb ifil ifni ifnr ifrb ifrf ifri igil igli iglu igni ignu igri iiii ilin ilir ill- illi ilni infi infl inig inni innr innu inri inui inul inun irfu iri- irig iril irin irlb irri irul irun iuiu lblr lbug lfng lgbu lgfl lgin libr libu liff lifg lifl ligg ligi lign liig liii liin liir lilb lilg lili lill lilu ling linn lirg liri lirl lirn lirr liru liuf liun llll lrgb lrif lrrr luff lufu lugg lugi lugu luif luin luli lull lulu lung luni lunn lurg luri n-ii nbfl nbuf nfff nfib ngri ngur nguu nibi niff nigg niir niiu nili nill nilu ning nini ninl niru niur nlgn nlrb nngn nnnn nrlb nrrl nubi nubl nuff nuin nuli null nung nunn nuri nurl nurn nurr nuru rbbb rbbr rffl rgbi rib- ribu riff rifu rigg rigi rigu riif riin rill rilu rinf ring rinn riri rlif rlin rlug rnbr rnin rnli rrif rrrr rrun rubb rubi rubu ruff rugg rugi ruif ruin rull runf rung runi runn ruri ruru ruun ubbi ubii ubir ubli ugli ugni ugri ugur uguu uirr ulli ullr ulul ungu uni- unif unii unin unir unlf unni unrf urbi urff urfi urgi urgu urib urif urin uriu urni urri urun urur uulu uuni uuri uuuu