bbbb bbci bbeb bblb bcbc bcbp bccc bcci bccl bcec bcie bcpl bcpp bebb bebe bebi bebo beci beeb beel beep beic beil bele beli bell belo belp beo- bepo bibb bibe bibi bibl bibo bicc bice bici bico bieb biel bile bili bill bilo bio- bioc bioi biol bipp bleb blee blei bleo blic blio blip blob bloc bloo blop bobb bobe bobi bobo boce boco boec boee boel boeo boep boi- boie boii boil bole boli boll bolo boob booc booe bool boop bope bopp bpcp bpel bpoe c-bo cbbc cbcc cbce cbcl cbcp cbec cbee cblb cblc cbol cbpc cbpp ccbc cccb cccc ccci cccl cccp ccee ccel ccic ccii ccil ccip cclc ccli ccob ccoc ccpe ccpl ccpp cebp cec- cece ceci ceco cecp ceeb ceec ceel ceil ceip cel- celc cele celi cell celo ceol ceop cepc cepe cepo cepp cibc cibe cibi cibo cicc cici cico ciee ciel ciii cili cill cilo cilp ciob cipo cipp clec clee clei cleo clep clib clic clii clio clip clob cloe cloo clop clpb clpp cobb cobe cobi cobo coce coco cocp coel coep coil coip col- colb cole coli coll colo colp coob cool coop cope copi copo copp cpbc cpce cpeb cpep cpic cpio cplc e-cl ebbc ebbo ebcc ebel ebic ebli eboe ebol eboo ebpo ecbc ecbe eccb eccc ecce ecci eccl ecco ecib ecil ecip eco- ecol ecop ecpp eeee eele eeoc eico eiec eiei eile eipo el-b el-p elbe elbi elbo elcb elce elco elec elee eleo elic elie elil elio elle elli ello eloi elpe elpi eole eoli eolo epcc epci epec epee epi- epic epie epil epip eple epll epoc epol eppc eppo eppp i-be ibec ibie ible icbc icbp iccb iccc icci iccl icco iccp icec icee icel icle icll iclp icoc icpc icpo iecc ieie ieio iele iiie iiii iiio iioi iioo iiop ilbc ilce ile- ilec ileo ilic ilie ilio ill- ille illi illo illp iloc iloo ilpe iobi ioci iocp ioee ioel ioii ioio iole iolo iooi iooo iopl ipcc ipce ipec ipie ipil iplo ipoe ipop ippc ippo lbcc lcbc lccc lcce lcpc lcpl lebo lece leco leel leep leib leic leie leil leio lele leli lell lelo leoc leoi lepe lepi lepo lepp libc libe libo lice lico lieb liel liep liii lilb lile lili lill lilo lio- lip- lipb lipc lipe lipi lipl lipo lipp llcc lllc llll lloc lloo lob- lobb lobe lobi lobo locc loce loci loco loeb loei loic lole loli loll lolo loob looc looe lool loop lope lopi lopp lpec lppl o-eo obbo obec obel obie oble oboe oboi obol ocbc occc occi oce ocee oclc ocpp oec- oecc oeec oeil oele oici oiii oipc olbo olcc ole- olei oleo olib olic olie olio olle olli ollo olpc olpe oobe oobi oolo oooo opec opei opel opep opic opie opii opio ople opo- oppi oppo pbcc pbil pboc pcbc pccc pcce pccl pcep pcip pcll pclo pcoe pcpb pcpp pebl pece peci pecl peco peec peel peep peil peio peip pel- pelb pele pell pelo pepe pepi pepo pibb pibi picc pice pici pico piel piep piip pil- pile pili pill pilo piob pipe pipi pipo pipp plcc plce ple- pleb plec plee plei pleo plib plie plio plip plob ploc ploo plop plpp pobo poce poco poel poil poio pole poli poll polo pool poop pop- popc pope popi popo popp ppcc ppci ppib ppic ppie pple ppli pplo pppo pppp