bbbb bbeb bbet bbfc bblb bcbc bccc bccl bcec bcet bcfc bctc bcuc bebb bebe becu beeb beef beel beet befe beff beft bele bell belt belu betc bete bett betu bffl bftt blbt blcu bleb blee blet bleu blfc blub blue bluf blut btcc btcl btec btfc bttb bubb bube bubu bucc buce bucu buel bueu bufc bufe buff bulb bule bull bult bulu but- bute butt cbbc cbcc cbce cbcl cbct cbcu cbec cbee cbef cbet cbfb cbfc cblb cblc cbtc cbtf cbtl ccbc cccb cccc cccf cccl cccu ccee ccel ccfc ccff ccfl cclc cctb cctc cctl cctt ccuc ccut cebu cec- cece cect ceeb ceec ceel cef- cefc cel- celc cele celf cell celt cet- cete cfbc cfbt cfcb cfcf cfcl cffb cftc cfte cftl clec clee clef clet cleu cltb cltc club clue clut ctcf ctec ctfc ctle cub- cubb cube cucc cuce cufc cuff culb culc cule cull cult cut- cutc cute cutt e-cl ebbc ebcc ebel ebfc ebul ecbc ecbe eccb eccc ecce eccl ecct ecef ecfc eclt ect- ectc ectf eeee eefe eefl eele eetc eete eetu efet eft- eftu el-b elbe elbu elcb elce elec elee elef elet elfc elfe elft elle ellu elte elue elul etbc etcc etec etee etel etfb etfc etfe ette ettu eubc eufc eule fble fccf fece fect feeb feel feet fefc fefe feff fele felf fell felt fete fett fetu ffcc ffee ffff fftf flcl flee flet flub flue fluf ft-c ft-l ftfc ftlb ftub ftuc fubb fubu fuc- fuct fuel fuet fufc fuff fufu fule full fulu fute futu lbcc lcbc lccc lcce lcfc lctl le-u lebu lece lect leef leel leet lefe leff left lele lell lelu lete lett leuc lfcc llcc llef llet lleu lllc llll ltbf ltbl ltcc ltee ltfc lttc ltuc lube luce luef lufe luff luft lufu lule lull lulu lute tbcb tbcc tbce tccc tccu tcfc tctc tcul tebu tecl tect teec teef teel teet tefc teff tefl teft tel- telc tele tell telt telu tete tett tetu teut tfcu tfeb tfec tftc ttbb ttfc ttff tttt ttul tubb tube tubu tucc tuel tuet tufc tufe tuff tuft tufu tule tull tulu tute tutl tutt tutu ubbe ubet uble ubtf ucbc ucel ucfb ucut uele uell ufcu ufel uffe ulbc ulcc uleb ulee ulfe ulft ulle ultt ulul utec utel uttu uulu uutf uuuu