bbbb bbeb bblb bebb bebe beeb beel beep bele bell belp belu bleb blee bleu blub blue blup bpel bubb bube bubu buel bueu bulb bule bull bulu ebel ebul eeee eele el-b el-p elbe elbu elee elle ellu elpe elue elul epee eple epll eppp epub eule le-u lebu leel leep lele lell lelu lepe lepp lleu llll lppl lube lule lull lulu lupe lupu luup pblu pebl peel peep pel- pelb pele pell pelu pepe peul ple- pleb plee pleu plpp plue plup pple pppp pu-e pube publ pubu puel pueu pule pull pulp pulu pupe pupl pupu ubbe uble uele uell uleb ulee ulle ulul upbe uplb uppe uppp uppu upup uulu uuuu