pogon[8],
dong[7], pong[7], pogo[7], nogo[6], ogon[6], pond[6], opon[5], pono[5],
dog[6], gon[5], pod[5], dno[4], don[4], odo[4], ono[3],
go[4], do[3], od[3], op[3], po[3], no[2], on[2],
