dddd dedd dede dedu deed deel deep deet deld dele dell delp delt depe depp dept dete deue deul deut dpdt dpll dtdp dted dtle dtpl dttp dudd dude dudu duel duet dule dull dult dulu dupe dute dutp duul duut edde eddp ede- edel edle edup eede eedu eeee eele eete eetu el-p elde eled elee elet elle ellu elpe elte elue elul epee eple epll eppp epte etee etel ette ettu eude eule lddp le-u lede ledt leed leel leep leet lele lell lelu lepe lepp lept lete lett leud lldp llet lleu llll llud lppl ltee ludd lude lued lule lull lulu lupe lupu lute luup ped- pede peed peel peep peet pel- pele pell pelt pelu pepd pepe pete pett peul peut pldt ple- pled plee plet pleu plpp pltt plud plue plup pple pppd pppp pptt ptld ptpd pu-e pudu pued puel puet pueu pule pull pulp pult pulu pupe pupl pupu put- pute putt putu tedd tede teed teel teet tel- teld tele tell telt telu tepe tepp tepu tete tett tetu teut tldp tpdu tped tpld tppd tppp tpte tptp tput tttt ttul tude tudu tuel tuet tule tull tulp tulu tupe tupu tute tutl tutt tutu udel udet udpd uele uell ulde ulee ulle ultt ulul uped uppe uppp uppu uptl upup utel utep utpd uttu uulu uuuu