bega[8], biga[8], giba[8], begi[8], bieg[8],
beg[7], big[7], gib[7], ghi[7], bai[5], agi[5], gai[5], gie[5], hai[5],
ba[4], be[4], ag[4], ha[4], eh[4], he[4], bi[4], hi[4],
