cygo[8], geek[7], kego[7], kogo[7], koce[6], okey[6],
cyg[7], keg[6], kog[6], cyk[6], cek[5], ego[5], koc[5], eko[4], oko[4],
go[4], ce[3], co[3], ko[3], ok[3], ee[2], eo[2],
