-ing bbbb bbci bbin bblb bbng bbrc bbrg bcbc bcbg bccc bcci bccl bibb bibi bibl bicc bicg bici bigb bigc bigg bign biin bili bill bin- binc bing bini binn birb birg biri birl birn birr blic blin blir blni blrc blrg bnib bnin bnrr brcb bric brig bril brin brrr cbbc cbcc cbcl cbcn cbcr cbgb cbir cblb cblc cbln cbrl cbrn ccbc ccbn cccb cccc ccci cccl ccgc ccic ccii ccil ccir cclc cclg ccli ccnb ccnc ccni ccnr ccrc ccrg ccri ccrl cgcc cgcg cibc cibi cicc cici cicr cigi ciii cili cill cin- cinc cing cini cirb circ ciri cirl cirr clib clic clig clii clin clir clri cnbc cnbl cnci cngi cnib cnic cnrc cnrr crbc crcc crcr crib cric crig crin gc-c gcbc gccc gcic gcii gclc gcrg ggcl gggg ggrn gibb gicr gigg gigi gign gilg gili gill ging gini ginn girg giri girl girn girr glbc glcc gli- glib glic glin glrb gncc gngc gnib gnin gnrc gnrr grbr grcc grib gric grig gril grin grni grrl grrr ibrc ibri icbc iccb iccc icci iccl iccn iccr icgc icll iclr icnb icnc icrc icrr igbc igcc igil igli igni igri iiii iirc ilbc ilic ilin ilir ill- illi ilni incb inci incl incr inig inni innr inri ircc ircg iri- iric irig iril irin irlb irrc irri lbcc lblr lcbc lccc lcrg lcrl lgin libc libr licr ligc ligg ligi lign liig liii liin liir lilb lilg lili lill linc ling linn lirc lirg liri lirl lirn lirr llcc llgc lllc llll lncr lrgb lric lrrc lrrr n-ii nbbc nbcc nbci nbic ncbc ncbi nccc ncci nccn nccr ncgr nclc ncln nclr ncnc ncrc ncri ngic ngri nibi nicc nici nicl nigc nigg niir nili nill ning nini ninl nlcc nlgn nlic nlrb nngn nnnn nric nrlb nrrc nrrl rbbb rbbr rbcl rcbc rccb rccc rcgc rcic rcnl rcnr rcrg rgbi rib- ricc rigg rigi riin rill ring rinn riri rlcg rlin rnbr rnin rnli rrrr