cccc cccl ccee ccel cclc ccoc cctc cctl cctt cec- cece ceco cect ceec ceel cel- celc cele cell celo celt ceol cet- cete ceto clec clee cleo clet cloe cloo clot cltc coce coco coct coel col- cole coll colo colt cool coot cotc cote coto cott ctec ctle ctol ctot e-cl eccc ecce eccl ecco ecct eclt eco- ecol ecot ect- ectc ecto eeee eele eeoc eetc eete elce elco elec elee eleo elet elle ello elte elto eole eolo eotc eoto etcc etco etec etee etel etoe ette etto lccc lcce lctl lcto lece leco lect leel leet lele lell lelo leoc lete leto lett llcc llet lllc llll lloc lloo locc loce loco lole loll lolo looc looe lool loot lote lotl loto lott ltcc ltee lttc o-eo occc occt oce ocee ocet oclc oct- octe octo oec- oecc oeec oele olcc ole- oleo olet olle ollo olot oolo oooo otcl otee oto- otoe otoo otte otto tccc tctc tecl teco tect teec teel teet tel- telc tele tell telo telt tete teto tett tlco toce toco toee toet tol- tole toll tolo tolt tool toot totc tote toto tott tteo ttoe tttt