bigo[8], bogi[8], bido[7], dogi[7], boki[7], kogi[7], doki[6],
big[7], gib[7], ghi[7], bid[6], gid[6], gik[6], bod[6], dog[6], bok[6], kog[6], boi[5], obi[5], goi[5], ogi[5], hoi[5], dok[5], kod[5], doi[4], ido[4], kio[4], koi[4],
bi[4], hi[4], bo[4], go[4], ho[4], oh[4], id[3], ki[3], do[3], od[3], ko[3], ok[3],
