-er -ic b-u bbb bbc bbe bbg bbi bbr bbu bcb bcc bce bcg bci bcr bcu be- beb bec bee beg bei ber beu bgb bgc bge bgg bgi bgr bgu bi- bib bic bie big bii bir biu brb bre brg bri brr bru bub buc bue bug bui bur buu c-- cbb cbc cbe cbg cbi cbr cbu ccb ccc cce ccg cci ccr ccu ce- ceb cec cee ceg cei cer ceu cgb cgc cge cgg cgi cgr cgu ci- cib cic cie cig cii cir ciu crb crc cre crg cri crr cru cub cuc cue cug cui cur cuu ebb ebc ebe ebg ebi ebr ebu ec- ecb ecc ece ecg eci ecr ecu eeb eec eee eeg eer egb egc ege egg egi egr egu eib eic eie eig eii eir eiu erb erc ere erg eri err eru eu- eub euc eue eug eui eur gbc gbe gbg gbi gbr gbu gcb gcc gce gcg gci gcr gcu ge- geb gec gee geg gei ger geu ggb ggc ggg ggi ggr ggu gib gic gie gig gii gir giu grb grc gre grg gri grr gru gu- gub guc gue gug gui gur guu ibb ibc ibe ibg ibi ibr ibu icb icc ice icg ici icr icu ie- iec iee ieg iei ier igb igc ige igg igi igr igu iib iic iie iii iir iiu ir- irb irc ire irg iri irr iru iu- iub iuc iue iug iui iur rbb rbc rbe rbg rbi rbr rbu rcb rcc rce rcg rci rcr rcu re- reb rec ree reg rei rer reu rgb rgc rge rgg rgi rgr rib ric rie rig rii rir rrb rrc rrg rri rrr rru rub ruc rue rug rui rur ruu ubb ubc ube ubg ubi ubr ubu ucb ucc uce ucg uci ucr ucu ueb uec uee ueg uei uer ugb ugc uge ugg ugi ugr ugu uib uic uie uig uii uir uiu ur- urb urc ure urg uri urr uru uuc uue uug uur uuu

bbbb bbci bbeb bbrc bbrg bcbc bcbg bccc bcci bcec bcer bcie bcru bcuc bebb bebe bebi beci becu beeb beeg beer begg begi begu beic beir berc bere berg beri berr beru beur bibb bibe bibi bicc bice bicg bici bieb bier bieu bigb bigc bige bigg bigu birb bire birg biri birr biru brcb brce breb brec bree breg brei brer bric brie brig brrr bruc brue brug bubb bube bubi bubu bucc buce buci bucu buer bueu buge bugg bugi buic buie buir buiu bur- burb bure burg buri burr buru cbbc cbcc cbce cbcr cbcu cbec cbee cber cbgb cbir cbre ccbc cccb cccc ccci cccu ccee ccgc ccic ccii ccir ccrc ccre ccrg ccri ccuc cebu cec- cece ceci ceeb ceec cege cer- cerc cere ceri ceui cgcc cgcg cger cibc cibe cibi cicc cici cicr cicu ciee cier cigi cigu ciii cirb circ cire ciri cirr ciuc crbc crbu crcc crce crcr cre- creb crec cree creg crei creu crib cric crie crig criu crub crue crug cub- cubb cube cubi cucc cuce cuci cuer cui- cuir curb cure curi curr ebbc ebbr ebcc eber ebic ebru ebur ecbc ecbe eccb eccc ecce ecci ecib ecig ecrc ecri ecrr ecru eeee eerc eerg egbe egbu egcc egcg egcr egec egee eger eggb egge eggi egir egre egri eiec eiei eier eige eigg eire erbb erbe ercc erce ereb erec erei erer erg- ergg ergi eric erie eriu errc erre erub eruc erur eubc eubi euer euge eur- eurc eure gc-c gcbc gccc gcic gcii gcrg gebe gebi gece geer gege gegg geic geie geig geir gerb gere geri geru geue gggg gibb gibe gicr gier gige gigg gigi gire girg giri girr giru giue giur grbr grcc grce greb grec gree greg greu grib gric grie grig grrr grub grue grug grui grur gubb gubi gubu guci guer gugb guge gugg gugi gugu guib gurb gure gurg guri gurr guru i-be ibec ibeg ibge ibie ibrc ibri icbc iccb iccc icci iccr iccu icec icee icer icgc icrc icre icrr icru icub icue iecc ieie iere ieri igbc igcc iger igri igue iiie iiii iirc iiuc irbe ircc ircg ircu iree irer iri- iric irie irig irrc irre irri iucc iuce iuge iuiu rbbb rbbr rcbc rccb rccc rcgc rcic rcrg rebb rebe rebu recc rece reci recr recu reeb rege regi regr regu reii reir reiu rere rerg reri reru reue reuu rgbe rgbi rib- ribe ribu ricc rice rier rieu rige rigg rigi rigu rire riri riue rrrr rubb rube rubi rubu ruce ruci ruer ruge rugg rugi rurc rure ruri ruru u-ie ubbe ubbi uber ubic ubii ubir ucbc ucci ucrc ueir ugcc ugcg ugri ugur uguu uige uirr urbe urbi urci ure- urge urgi urgu urib uric urie uriu urre urri urur uuri uuuu

bbbee be-er beber bebic becic beciu becue beebe beeri begee begge begic begue begur beibi beice beier beige beire berbe bercu berec bereg berei berge bergi berie berig beriu berre berri berru beuer beure bibbe biber bibic bibie bibri bicer biebe biere bieri big-i bigge bigig birgi birgu birie birur biure brebu brece breer breg- brege bregg brere breu- bribe brice briec brieg brier brige brigg brigi brrrr bruce bruer bruge brugg bruiu bruri bubbe buber bucci bucic bucie bucur buger bugge bugre buici buire burcu burge burgi burgu buric burie burri burru buruc ccccc cccii cciii cebec ceber ceci- cecie cecri ceere cegge cegui cerbu cerc- cerce cerci cerec cerer cerge ceric cerie cerre ciber cibir cicer ciceu circe cirge ciric cirie cirr- cirri crebe crece creer cregg creu- creue cribb cribe crice crier cruce crure cubbe cubeb cuber cubi- cubic cubie cubub cucei cucui cugir cuire curbi curce curer curic curie curig curre curri curug ebber ebbie eberg ebibe ebure eeeee eerie egger eggie eggig eiger eirie erbbe erber erceg erege erere ericb erice erier eriic eubie eucre euric eurre