dddd dedd dede deed deep deet depe depp dept dete dewe dpdt dtdp dted dttp dwdd dwet dwte dwwe dwww edde eddp ede- eede eeee eete epee eppp epte etee ette ewew ewte ped- pede peed peep peet pepd pepe pete pett pewe pppd pppp pptt ptpd tdwp tedd tede teed teet tepe tepp tete tett tped tppd tppp tpte tptp tttt twdt twee twep wddd wdde wddw wded wdep wdet wdpt wdpw wdte wdtp wdtw wdwd wedd wede wedt wedw weed weep weet wepe wepp wept wetd wete wett wewe wpdt wpep wpet wppt wptd wpte wptw wpwt wtpt wtte wttt wttw wtwt wtww wwdp wwdw wwet wwpt wwpw wwtd wwtp wwtw wwwe wwww