-ing bbbb bbci bbin bblb bbng bbrc bbrg bcbc bcbg bccc bcci bccl bcnu bcru bcuc bgun bibb bibi bibl bicc bicg bici bigb bigc bigg bign bigu biin bili bill bilu bin- binc bing bini binn binu birb birg biri birl birn birr biru blcu blic blin blir blni blrc blrg blub blur bnib bnin bnrr brcb bric brig bril brin brrr bruc brug brun bubb bubi bubu bucc buci bucu bugg bugi buic buin buir buiu bulb bulg buli bull bulu bunb bung buni bunn bunu bur- burb burg buri burl burn burr buru cbbc cbcc cbcl cbcn cbcr cbcu cbgb cbir cblb cblc cbln cbrl cbrn ccbc ccbn cccb cccc ccci cccl cccu ccgc ccic ccii ccil ccir cclc cclg ccli ccnb ccnc ccni ccnr ccnu ccrc ccrg ccri ccrl ccuc cgcc cgcg cibc cibi cicc cici cicr cicu cigi cigu ciii cili cill cin- cinc cing cini cirb circ ciri cirl cirr ciuc clib clic clig clii clin clir clri club clun cnbc cnbl cnci cngi cnib cnic cnrc cnrr crbc crbu crcc crcr crib cric crig crin criu crub crug crun cub- cubb cubi cucc cuci cucn cui- cuil cuin cuir culb culc cull curb curi curl curn curr gc-c gcbc gccc gcic gcii gclc gcrg ggcl gggg ggrn gibb gicr gigg gigi gign gilg gili gill ging gini ginn ginu girg giri girl girn girr giru giur glbc glcc gli- glib glic glin glrb glub glug glui glun glur gncc gngc gnib gnin gnrc gnrr grbr grcc grib gric grig gril grin grni grrl grrr grub grug grui grun grur gubb gubi gubu guci gugb gugg gugi gugu guib guil guin gulb guli gull gulu gung gunn gurb gurg guri gurl gurn gurr guru ibrc ibri icbc iccb iccc icci iccl iccn iccr iccu icgc icll iclr icnb icnc icrc icrr icru icub igbc igcc igil igli iglu igni ignu igri iiii iirc iiuc ilbc ilic ilin ilir ill- illi ilni incb inci incl incr inig inni innr innu inri inui inul inun ircc ircg ircu iri- iric irig iril irin irlb irrc irri irul irun iucc iuiu lbcc lblr lbug lcbc lccc lcrg lcrl lgbu lgin libc libr libu licr ligc ligg ligi lign liig liii liin liir lilb lilg lili lill lilu linc ling linn lirc lirg liri lirl lirn lirr liru liun llcc llgc lllc llll lncr lrgb lric lrrc lrrr luci lugg lugi lugu luin luli lull lulu lung luni lunn lurg luri n-ii nbbc nbcc nbci nbic ncbc ncbi nccc ncci nccn nccr nccu ncgr nclc ncln nclr ncnc ncrc ncri ngic ngri ngur nguu nibi nicc nici nicl nicu nigc nigg niir niiu nili nill nilu ning nini ninl niru niur nlcc nlgn nlic nlrb nngn nnnn nric nrlb nrrc nrrl nubc nubi nubl nuci nucu nuin nuli null nunc nung nunn nurc nuri nurl nurn nurr nuru rbbb rbbr rbcl rcbc rccb rccc rcgc rcic rcnl rcnr rcrg rgbi rib- ribu ricc rigg rigi rigu riin rill rilu ring rinn riri rlcg rlin rlug rnbr rnin rnli rrrr rrun rubb rubi rubu ruci rugg rugi ruin rull runc rung runi runn rurc ruri ruru ruun ubbi ubic ubii ubir ubli ucbc ucci ucil ucin ucrc ugcc ugcg ugli ugni ugri ugur uguu uirr ulbc ulcc ulic ulli ullr ulul uncc uncg unci uncl ungu uni- unic unii unin unir unni urbi urci urgi urgu urib uric urin uriu urni urri urun urur uulu uuni uuri uuuu