-ene bbbb bbch bbeb bbng bbrc bbrg bcbc bcbg bccc bcec bcer bche bebb bebe bech beeb beeg been beer begg behn behr bene beng benn berc bere berg bern berr bhcc bher bneg bner bnrr brcb brce breb brec bree breg bren brer brrr cbbc cbcc cbce cbcn cbcr cbec cbee cber cbgb cbre cbrh cbrn ccbc ccbn cccb cccc ccee ccgc cche cchr ccnb ccnc ccne ccnr ccrc ccre ccrg cec- cece ceeb ceec cege cen- cene ceng cer- cerc cere cern cgcc cgcg cger chce chch cheb chec chee cheh chen cher chgb chge chgn chnb chnc chnr chrb chrc chrn chrr cnbc cnrc cnrr crbc crcc crce crcr cre- creb crec cree creg creh cren crne ebbc ebbr ebcc eben eber ecbc ecbe eccb eccc ecce eche ecne ecrc ecrr eeee eeng eerc eerg egbe egcc egcg egcr egec egee eger eggb egge eggh eghe eghh egne egre ehcc eheh ehen eher ehre enb- enbn enbr ence ench enee eneg ener enge engg engr ennc enne erbb erbe ercc erce erch ereb erec eren erer erg- ergg ergh erhc erne errc erre gc-c gcbc gccc gcrg gebe gece geen geer gege gegg gehn gen- genc gene geng genn gerb gere gern gggg gghg ggrn ghee gheg gncc gngc gnrc gnrr grbr grcc grce greb grec gree greg gren grrr hcbc hccb hccc hcch hcgh hcng hebb hebe hebr hech heeb heeg heer hege hegg hegh hehe hehn hene heng henh henn herb herc here herg hern herr hggc hhgg hhhh hnce hree hrng hrrc nbbc nbcc nber ncbc nccc nccn nccr ncec ncee ncen ncer ncgr nchc ncnc ncrc ncre nebb nebe nebn nebr necc nece nech necr neeb neen neer nege negh nehe nene neng nenh nerc nere nerr ngen nger nhcc nheb nhnn nhrc nngn nnnn nren nrrc rbbb rbbr rbgh rcbc rccb rccc rcgc rchb rcnr rcrg rebb rebe recc rece rech recr reeb reen rege regn regr rehb rehe rehn rene reng renn rere rerg rgbe rhbg rhce rhcg rheb rhee rhen rnbr rrrr